Platform Certification Program Certification Test Report

When the accept attribute of choice is set to "approximate", or is not set and the accept attribute of its enclosing menu is set to "approximate", then the text of the choice element defines an approximate recognition phrase, as defined under "Grammar Generation" in section 2.2.

239

The type attribute, if present, specifies the name of one of the following builtin grammar types from Appendix P: boolean, date, digits, currency, number, phone, time.

250

[2.3.1.2]

A builtin URI of the form "builtin:grammar/<type>" references a builtin speech grammar.

251

[2.3.1.2]

[optional] A builtin URI of the form "builtin:dtmf/<type>" references a builtin DTMF grammar.

252

[2.3.1.2]

[optional] A field containing two builtin grammar elements, one referring to the builtin speech grammar and the other referring to the builtin DTMF grammar of the same type is equivlent to a field whose type attribute is set to the equivalent type.

286

If the caller is silent for finalsilence milliseconds during a recording, the recording is terminated.

288

A VoiceXML document can initiate a transfer to another entity using the transfer tag, such that the Interpreter remains connected to the original caller and interpretation resumes upon termination of the transfer.

289

A VoiceXML document can initiate a transfer to another entity using the transfer tag, such that the Interpreter disconnects from the caller immediately upon attempting the transfer and continues execution as it would under termination of the Session.

290

A bridged transfer can contain speech grammars such that the interpreter listens to the original caller for the duration of the transfer, terminating the transfer as soon as a spoken utterance matches an active speech grammar.

291

During a bridged transfer, any speech grammars outside the transfer element are not active and cannot be matched.

292

A transfer element that specifies both a 'dest' and 'destexpr' attribute results in an 'error.badfetch' upon loading of the document containing it.

293

A transfer element specifying a 'cond' attribute that evaluates to false upon selection of the element by the FIA is not executed.

294

A transfer element not specifying a 'bridge' attribute is executed as a blind transfer.

295

A bridged transfer specifying a 'connecttimeout' attribute with a W3C time specification will terminate a transfer attempt if the destination entity cannot be connected to within that period of time.

296

A bridged transfer specifying a 'maxtime' attribute with a W3C time specification will terminate a transfer after that period of time has elapsed after connecting to the destination entity if it has not already been terminated for other reasons.

297

A bridged transfer specifying a 'transferaudio' attribute with valid URI to an audio file wil play that audio from the beginning of the transfer attempt until the attempt is terminated or the destination entity is connected to.

298

Upon a successful blind transfer, a 'connection.disconnect.transfer' event is thrown and the transfer name variable remains undefined.

300

If the originating caller hangs up during a bridged transfer, a 'connection.disconnect.hangup' event is thrown and the transfer name variable remains undefined.

301

If the Interpreter is unable to connect to the destination entity when attempting a transfer because it is busy, the transfer name variable is filled with the value 'busy'.

304

If a transfer is terminated because the original caller matches an active DTMF grammar, the transfer name variable is filled with the value 'near_end_disconnect'.

305

If a transfer is terminated because the destination entity disconnects, the transfer name variable is filled with the value 'far_end_disconnect'.

307

If a bridge transfer is terminated by the Interpreter because the 'maxtime' has expired without the transfer being terminated, the transfer name variable is filled with the value 'maxtime_disconnect'.

308

Upon termination of bridge transfer, the shadow variable 'name$.duration' (where name is the name attribute of the transfer element) is set to the number of seconds from the time the destination entity was connected to and the transfer was terminated.

309

[2.3.7.2]

Upon termination of bridge transfer due to the caller matching an active speech grammar ('near_end_disconnect'), the 'name$.inputmode' shadow variable is set to 'voice'.

310

Upon termination of bridge transfer due to the caller matching an active DTMF grammar ('near_end_disconnect'), the 'name$.inputmode' shadow variable is set to 'dtmf'.

311

Upon termination of a bridge transfer due to the caller matching an active speech grammar ('near_end_disconnect'), the 'name$.utterance' shadow variable is set to utterance text.

334

[3.1.1]

A grammar can be specified in the format of the Augmented BNF (ABNF) Form of the W3C Speech Recognition Grammar Specification.

379

When set to false, the bargein attribute on the prompt the user should be unable to interrupt the playback of the contents of the prompt.

380

If bargein occurs during any prompt in a sequence, all subsequent prompts are not played. This is required when barge-in is supported by a platform.

382

If the bargein attribute is not specified, then the value of the bargein property is used if set.

387

A nomatch event will never be generated in the case of hotword barge-in.

409

session.connection.local.uri returns a URI which addresses the local interpreter context device.

410

session.connection.remote.uri returns a URI which addresses the remote caller device.

411

session.connection.protocol.name returns the name of the connection protocol.

412

session.connection.protocol.version returns the version of the connection protocol.

413

session.connection.redirect returns an array representing the connection redirection paths. The first element is the original called number, the last element is the last redirected number. Each element of the array contains a uri, pi (presentation information), si (screening information), and reason property. The reason property can be either "unknown", "user busy", "no reply", "deflection during alerting", "deflection immediate response", "mobile subscriber not reachable".

414

session.connection.aai returns an application-to-application information passed during connection setup.

415

session.connection.originator returns the local or remote property. (For instance, the following ECMAScript would return true if the remote party initiated the connection: var caller_initiate = connection.originator == connection.remote;

491

With universal grammars active, requesting to cancel playing of the current prompt throws the cancel event.

492

With universal grammars active, asking to exit throws the exit event.

493

With universal grammars active, asking for help throws the help event.

495

When the user has been transferred unconditionally to another line and will not return the connection.disconnect.transfer event is thrown.

579

[6.1.3]

When an interpreter context does prefetch a resource, it must ensure that the resource fetched is precisely the one needed.

601

[6.3.4]

The value of the bargein property controls whether barge-in is allowed by default for prompts.

624

A bridged transfer can contain DTMF grammars such that the interpreter listens to the original caller for the duration of the transfer, terminating the transfer as soon as DTMF input matches an active DTMF grammar.

630

The interpreter MAY support other formats such as the JSpeech Grammar Format [JSGF] or proprietary formats.

1015

If no audio input is received from the user before the timeout period expires, then record variable is not defined, and a timeout event is thrown.

1021

Speech input not matching any active speech grammar is ignored (and therefore does not terminate or otherwise affect recording).

1027

The form item object has a result variable, specified by the name attribute. This variable may be given an initial value with the expr attribute.

1029

The form item transfer has a result variable, specified by the name attribute. This variable may be given an initial value with the expr attribute.

1034

The form item 'object' has a guard condition specified with the cond attribute. A form item is visited if it is not filled and its cond is not specified or evaluates, after conversion to boolean, to true.

1039

The input item object may contain the filled element. Filled elements contain an action to execute after the result input item variable is filled in.

1041

The input item transfer may contain the filled element. Filled elements contain an action to execute after the result input item variable is filled in.

1044

The input item 'object' may contain the property element. Property elements specify properties that are in effect for this input item

1046

The input item 'transfer' may contain the property element. Property elements specify properties that are in effect for this input item.

1049

The input item 'object' may contain the prompt element. Prompt elements specify prompts to play when visiting this input item.

1051

The input item 'transfer' may contain the prompt element. Prompt elements specify prompts to play when visiting this input item.

1054

The input item 'transfer' may contain the grammar element. Grammar elements specify allowable spoken and character input for this input item.

1057

The input item 'object' may contain the catch element, which is in effect for this input item.

1058

The input item 'transfer' may contain the catch element, which is in effect for this input item.

1141

Upon termination of a bridged transfer due to the caller matching an active DTMF grammar ('near_end_disconnect'), application.lastresult$ is assigned to the DTMF result.

1165

Upon termination of a bridged transfer due to the caller matching an active speech grammar ('near_end_disconnect'), application.lastresult$.utterance is assigned the same value as the transfer's utterance shadow.

1166

If a bridged transfer is terminated due to a reason other than the caller matching an active speech or DTMF grammar ('near_end_disconnect'), application.lastresult$ is undefined.

1172

When the accept attribute of an option element is set to "approximate", the user may say a subphrase of the specified PCDATA for the option to be selected.

1180

A transfer element that specifies both a 'aai' and 'aaiexpr' attribute results in an 'error.badfetch' upon loading of the document containing it.

1181

[2.3.7.3]

If the destination URI is malformed, a error.connection.baddestination error is thrown.

1182

[2.3.7.3]

If the destination URI type is not supported, a error.unsupported.uri error is thrown.

1184

[2.3.7.3]

If the caller has insufficient permission to perform a call transfer (e.g. not allowed to make long distance calls, not permitted to make any transfers, etc.), destination URL is malformed, a error.connection.noauthorization error is thrown.

1185

The name (session.connection.protocol.name) also represents the subobject name for protocol specific information. For instance, if session.connection.protocol.name is 'q931', session.connection.protocol.q931.uui might specify the user-to-user information property of the connection.

2000

During a bridged transfer, any DTMF grammars outside the transfer element are not active and cannot be matched.

2001

The input item 'transfer' may contain the grammar element specifying allowable DTMF input for this input item.

ID	Spec. Reference	Abstract
1	[1.2.5]	For each HTTP request, the interpreter identifies itself using the User-Agent header in the format "name/version".
2	[1.2.5]	The interpreter must be able to freely sequence TTS and audio output.
7	[1.2.5]	The interpreter must be able to receive speech recognition grammar data dynamically.
8	[1.2.5]	The interpreter must be able to record audio received from the user.
11	[1.3]	If a URI does not refer to a document, the current document is assumed.
12	[1.3]	If a URI does not refer to a dialog, the first dialog is assumed.
18	[1.3.1]	A menu contains choices that can define transitions when matched.
19	[1.3.1]	A subdialog invokes a new dialog that once done, returns to the original context.
20	[1.3.1]	Upon return to the calling context all variable instances, grammars, and state information are restored.
24	[1.3.3]	An application root document's variables are defined and reachable via the application scope upon the loading of a document that specifies it as the application root.
25	[1.3.3]	An application root document's variables are not reinitialized as the user transitions between documents that both specify it as the application root.
26	[1.3.3]	An application root document's variables are no longer reachable from the application scope when the user transitions to a document not in that application.
27	[1.3.3]	An application root document's grammars are active during each time the interpreter listens, until it is unloaded.
28	[1.3.4]	A dialog can receive input matching a single grammar such that no other grammars are active.
29	[1.3.4]	A dialog can receive input matching one of several active grammars.
30	[1.3.4]	A user can direct interpretation in scenarios where grammars outside the current dialog are active, by matching one of these grammars, at which point execution transitions to the dialog containing the matched grammar.
32	[1.3.5]	The platform can throw a semantic error upon encountering an error in VoiceXML semantics.
36	[1.3.5]	Catch elements are inherited by enclosing elements by copy.
37	[1.3.6]	A link specifies a grammar that is active whenever a user is in the scope of the link.
41	[1.5]	A document may have meta elements.
42	[1.5]	A document may have var elements.
43	[1.5]	A document may have script elements.
44	[1.5]	A document may have property elements.
45	[1.5]	A document may have catch elements.
46	[1.5]	A document may have link elements.
48	[1.5.1]	The next dialog is determined by the previous dialog.
50	[1.5.1]	The version attribute is required on the vxml tag.
52	[1.5.1]	The xml:base attribute must be allowed on the vxml tag.
53	[1.5.1]	The xml:lang attribute must be allowed on the vxml tag.
54	[1.5.1]	The application attribute must be allowed on the vxml tag.
55	[1.5.1]	The value of xml:lang must be inherited down the document hierarchy by elements which also define the xml:lang attribute and do not have an alternative value.
56	[1.5.2]	The interpreter supports having an application root document and an application leaf document.
58	[1.5.2]	When a leaf document causes a root document to be loaded, none of the dialogs in the root document are executed.
59	[1.5.2]	Application root document variables are available for use by the leaf document.
61	[1.5.2]	Common ECMAScript code can be defined in the application root and used in leaf documents.
62	[1.5.2]	Application root catch handlers are default handlers for leaf documents.
72	[1.5.2]	When transitioning between two leaf documents that both specify the same application fully resolved URI then the transition must preserve the application root document's variables for use by the second leaf document.
73	[1.5.2]	A transition from an application leaf document to its own application root document caused by a 'goto' must preserve the application root document's variables for use by the root document.
74	[1.5.2]	If a transition occurs as the result of a submit between an application leaf document and its own application root document the application root document's variables must be re-initialized.
75	[1.5.2]	If a transition occurs from an application root document to itself then it must reinitialize the application root document's variables.
76	[1.5.2]	If a transition occurs from an application root document to a different application root document it must initialize the new application root document and use the new application root document's variables.
77	[1.5.2]	When a subdialog is invoked the original document and root document must be preserved for the completion of the subdialog.
80	[1.5.2]	If a document refers to a non-existent application root document, an error.badfetch event is thrown.
82	[1.5.3]	A document may contain a subdialog element.
83	[1.5.3]	A document may contain a return element.
84	[1.5.3]	Subdialogs add a new executable context when they are invoked.
85	[1.5.3]	A subdialog can be a new dialog within the existing document.
86	[1.5.3]	A subdialog can be a new dialog within a new document.
87	[1.5.3]	A subdialog can be composed of several documents.
88	[1.5.3]	A subdialog's new context may itself invoke a subdialog.
89	[1.5.4]	A VoiceXML interpreter may continue executing even after it no longer has a connection to the user.
93	[2.1]	A form may contain form items, which are subdivided into input items ( <field>, <record>, <transfer>, <object>, <subdialog>) and control items (<block> and <initial>).
96	[2.1]	A form may contain <var> elements.
97	[2.1]	A form may contain event handlers: <catch>, <error>, <help>, <noinput>, and <nomatch>.
98	[2.1]	A form may contain <filled> elements.
99	[2.1]	A form may specify an id attribute.
100	[2.1]	A form may specify a scope attribute which specifies the default scope of the form's grammars.
111	[2.1.6.2.3]	FIA ends when it encounters a <goto>.
112	[2.1.6.2.3]	FIA ends when it encounters a <submit>.
113	[2.1.6.2.3]	FIA ends when it encounters an <exit>.
114	[2.1.6.2.3]	FIA ends when it encounters a <return>.
138	[2.1.6.1]	The value of the name attribute of a form item defines a dialog-scoped variable that holds the value of the form item, i.e., dialog.name is a reference to the form item variable.
143	[2.1.6.1]	A form item variable does not need to have a name attribute.
145	[2.1.5]	A form may have one or more initial form items.
147	[2.1.5]	If a form has a form level grammar, its input items can be filled in any order.
148	[2.1.5]	If a form has a form level grammar, more than one input item can be filled as a result of any one user utterance.
149	[2.1.5]	A form-level grammar can fill the following form items: <field>, <record>, <transfer>, <object> and <subdialog>.
152	[2.1.6.2.1]	For all types of form item, if the form item is assigned a value, that form item is not eligible to be visited by the FIA (unless/until it is subsequently set to undefined).
153	[2.1.6.2.1]	Using the clear tag on a form item variable will make it eligible to be visited by the FIA (provided that it does not have a cond attribute evaluating to false).
154	[2.1.6.2.1]	Using the goto nextitem will force the FIA to immediately transition to the chosen form item.
163	[2.1.6.2.1]	If the last main FIA loop resulted in a goto nextitem or goto expritem then the specified form item is selected.
165	[2.1.6.2.1]	If the last main FIA loop did not result in a goto nextitem and there is no form item which is eligible to be visited then an implicit exit is generated.
183	[2.1.6.2.3]	If in the collect phase an event occurs the appropriate catch element is identified and executed in the process phase.
185	[2.1.6.2.3]	If an event handler, executed after an event is thrown while processing a form item, transfers control with a <goto> or <submit>, the FIA resumes in the new form at the initialisation phase.
186	[2.1.6.2.3]	If an event handler, executed after an event is thrown while processing a form item, does not transfer control with a <goto> or <submit> the FIA resumes in the current form at the selection phase.
187	[2.1.6.2.3]	If an input from the collect phase matches a link than the associated link's transition is executed if present.
188	[2.1.6.2.3]	If an input from the collect phase matches a link than the associated link's event is thrown if present.
189	[2.1.6.2.3]	If a link throws an event the event is processed in the context of the current form item.
190	[2.1.6.2.3]	If an input matches a grammar in a form other than the current form, then the FIA terminates and the other form is initialized.
192	[2.1.6.2.3]	If an input matches a grammar in a form other than the current form then that form's FIA starts with this input in its process phase.
195	[2.1.6.2.3]	If an input matches a grammar in the form then each identified filled action is executed in document order.
197	[2.1.6.2.3]	While executing a filled, processing of filled actions continues after a <reprompt>.
198	[2.1.6.2.3]	If an event is thrown during the execution of a <filled>, event handler selection starts in the scope of the <filled>, which could be a form item or the form itself, and then proceeds outward by enclosing dialog scopes.
200	[2.2]	If a menu is given an id attribute, the menu can be referenced using goto.
201	[2.2]	If a menu's scope attribute is set to "dialog", the menu's grammars are active only when the user transitions into the menu.
202	[2.2]	If a menu's scope attribute is set to "document", the menu's grammars are active over the whole document (or if the menu is in the application root document, any loaded document in the application).
203	[2.2]	If a menu's dtmf attribute is set to "true", the first nine choices that have not explicitly specified a value for the dtmf attribute are given the implicit ones "1", "2", etc. Remaining choices that have not explicitly specified a value for the dtmf attribute will not be assigned DTMF values (and thus cannot be matched via a DTMF keypress).
204	[2.2]	The dtmf attribute of choice can specify a sequence of DTMF digits. Whitespace is ignored.
205	[2.2]	When the DTMF associated with the choice is matched, the appropriate action is taken based on the next, expr, event or eventexpr attribute.
206	[2.2]	When the accept attribute of choice is set to "exact", or is not set and the accept attribute of its enclosing menu is set to "exact", or neither choice's accept attribute nor menu's is set, then the text of the choice element defines the exact phrase to be recognized. The user must say the entire phrase in the same order in which it occurs in the choice element phrase for matching this element.
208	[2.2]	Exactly one of the next, expr, event, and eventexpr attributes must be specified. Otherwise an error.badfetch event is thrown.
209	[2.2]	When the grammar associated with a choice element is matched, the URI associated with the "next" or "expr" element is fetched and transitioned to.
210	[2.2]	When the grammar associated with a choice element is matched, the event associated with the event or eventexpr attribute is thrown.
211	[2.2]	When "next" or the result of "expr" is not a correct URI, error.badfetch is thrown.
212	[2.2]	The message attribute defines a string that is available as the variable _message inside a catch element that catches the event being thrown.
213	[2.2]	The messageexpr attribute is an ECMAScript expression evaluating to the variable _message inside the catch element which catches the event being thrown.
215	[2.2]	If a grammar element is specified in choice, then the external grammar is used instead of an automatically generated grammar.
216	[2.2]	The enumerate element without content inside a prompt lists all the choices, following the order in which they appear in the menu.
217	[2.2]	The enumerate element with content defines a template specifier that will list all the choices. Two special variables are defined
218	[2.2]	An enumerate element can be used inside prompts associated with a menu element.
219	[2.2]	An enumerate element can be used inside catch element elements associated with a menu element.
220	[2.2]	An enumerate element can be used inside prompts associated with a field element that contain option elements.
221	[2.2]	An enumerate element can be used inside catch element elements associated with a field element that contain option elements.
222	[2.2]	If an enumerate element is used elsewhere, an error.semantic event is thrown.
223	[2.2]	Grammar matches within menu will update the application.lastresult$ array.
224	[2.2]	If the event handler called after matching a choice with an event or eventexpr attribute does not cause the interpreter to exit or transition control, then the FIA will clear the form item variable of the menu's anonymous field, causing the menu to be executed again.
232	[2.3.1]	The variable associated with the name attribute of the field holds the recognition result.
233	[2.3.1]	The named variable associated with the field must be unique among form items in the form; otherwise, error.badfetch is thrown.
234	[2.3.1]	If specified, the value of the expr attribute is evaluated and serves as the form item variable's initial value.
235	[2.3.1]	The default value of the expr attribute is ECMAScript undefined.
236	[2.3.1]	If the form item is initialized to a value via evaluation of the expr attribute, the form item will not be visited unless the form item variable is cleared.
237	[2.3.1]	If the cond attribute is present and its value evaluates to boolean false, the field is not visited.
238	[2.3.1]	The form item can also be visited if the cond attribute is not specified.
240	[2.3.1]	The value of the slot attribute defines the name of the grammar slot used to populate the form item variable of the field.
241	[2.3.1]	If the slot attribute is absent, the interpreter uses the value associated with the name attribute of the field to map the grammar slot to the form item variable.
242	[2.3.1]	If the value of the modal attribute is false, all active grammars are turned on while collecting this field.
243	[2.3.1]	If the value of the modal attribute is true, then only the field's grammars are enabled, and all other grammars are temporarily disabled.
244	[2.3.1]	The field element exposes a shadow variables named confidence, utterance, inputmode, and interpretation. The values of the utterance and inputmode shadow variables correspond to the values of the corresponding properties of the first object in the application-scoped lastresult$ array.
245	[2.3.1]	The confidence shadow variable is the confidence level for the name field of this interpretation and may range from 0.0-1.0. A value of 0.0 indicates minimum confidence, and a value of 1.0 indicates maximum confidence.
246	[2.3.1.1]	A field may contain a grammar element whose src attribute can specify an absolute or relative URI.
247	[2.3.1.1]	A grammar can be specified inline.
248	[2.3.1.1]	error.badfetch is thrown if a grammar specifies a src attribute and an inline grammar.
254	[2.3.1.3]	The PCDATA contained by an option element within a field generates a speech grammar.
255	[2.3.1.3]	When an option is chosen, the value attribute determines the interpretation value for the field's shadow variable and for application.lastresult$.
256	[2.3.1.3]	The dtmf attribute of an option element defines the DTMF sequence required for the option to be selected.
257	[2.3.1.3]	When the accept attribute of an option element is set to "exact", the PCDATA of the option defines the exact phrase to be recognized for the option to be selected.
258	[2.3.1.3]	Both option and grammar elements may be specified within a field.
259	[2.3.2]	The interpreter executes content contained in the block.
260	[2.3.2]	The interpreter visits the block when the cond attribute evaluates to true and the form item variable associated with the block is undefined.
261	[2.3.2]	The interpreter ignores the block when the form item variable associated with the block is defined via expr.
262	[2.3.2]	The interpreter ignores the block when the form item variable associated with the block is set via an assign.
263	[2.3.4]	The interpreter executes the subdialog associated with the src or srcexpr attribute.
267	[2.3.4]	If the called subdialog is in a separate document then variables from the calling document, and dialog scope are inaccessible to the subdialog.
268	[2.3.4]	The variables passed to the subdialog via the <param> element are accessible as variables within the dialog scope of the invoked subdialog. A <param> overrides the corresponding <var> expr attribute which is ignored.
269	[2.3.4]	The interpreter throws error.badfetch after the specified fetchtimeout when the URL associated with the src or srcexpr attribute points to a non-existent resource.
270	[2.3.4]	Exactly one of "src" or "srcexpr" must be specified; otherwise, an error.badfetch event is thrown.
271	[2.3.4]	If the subdialog returns a namelist, the filled element contained by the subdialog is executed upon return from the subdialog.
272	[2.3.5]	If an object element refers to an unknown object, the error.unsupported.objectname event is thrown.
273	[2.3.6]	Any DTMF keypress matching an active grammar terminates recording.
274	[2.3.6]	DTMF keypresses not matching an active grammar are ignored (and therefore do not terminate or otherwise affect recording).
275	[2.3.6]	If the termination grammar matched is a local DTMF grammar, the recording is placed in the record variable.
277	[2.3.6]	The variable associated with the name attribute references the recorded audio, and the audio can be played back using audio expr.
278	[2.3.6]	The variable associated with the name attribute of the record element can be submitted via the namelist of the submit element. The submitted audio is valid.
279	[2.3.6]	If a recording is created, the name$.duration shadow variable holds the duration (positive integer) of the recording in milliseconds.
281	[2.3.6]	The name$.size variable holds the size (positive integer) of the recording in bytes.
282	[2.3.6]	If the dtmfterm attribute is true, and the user terminates the recording by pressing a DTMF key which doesn't match any active DTMF grammar, then the name$.termchar shadow variable is set to the key pressed.
283	[2.3.6]	If the dtmfterm attribute is false, and user presses a key which does not match any active DTMF grammar, then recording is not terminated and the name$.termchar shadow variable is undefined when the recording terminates
284	[2.3.6]	name$.maxtime shadow variable is true if the recording was terminated because the duration specified by the maxtime attribute was reached.
312	[2.4]	When <filled> is a child of a <form>, and the mode attribute is set to "any", the filled is executed when any of the form items specified in the namelist has been filled.
313	[2.4]	When <filled> is a child of a <form>, and the mode attribute is set to "all", the filled is executed when all of the form items specified in the namelist have been filled.
314	[2.4]	A <filled> element within an input item cannot specify a mode.
315	[2.4]	A <filled> element within an input item cannot specify a namelist.
316	[2.4]	Control items may not be specified in the namelist of the <filled> element.
317	[2.5]	A link element may have one or more grammars that are scoped to the element containing the link.
319	[2.5]	When a link specifying next or expr is matched, the interpreter transitions to the document or dialog specified by next or expr.
320	[2.5]	A link can be a child of vxml, form, or of the form items field and initial.
321	[2.5]	A link at the form level has grammars active while the user is in that form.
322	[2.5]	If an application root document has a document-level link, its grammars are active no matter what document of the application is being executed.
323	[2.5]	A link at the vxml level has grammars that are active throughout the document.
324	[2.5]	If execution is in a modal form item, then link grammars at the form or document level are not active. [Not application?]
325	[2.5]	When a link that specifies event or eventexpr is matched, the specified event is thrown.
326	[2.5]	Events thrown as a result of matching a link are thrown at the current location in the execution, not at the location where the link is specified.
327	[2.5]	When a link is matched, application.lastresult$ is assigned.
328	[2.5]	A link may specify a message or messageexpr attribute providing additional context about the event being thrown. The message is available as the value of the _message variable within the scope of the catch element the interpreter selects to handle the event.
329	[2.5]	A link may specify a dtmf attribute that identifies the sequence of DTMF digits that cause the interpreter to activate the link.
330	[2.5]	Exactly one of next, expr, event or eventexpr must be specified; otherwise, an error.badfetch event is thrown.
331	[2.5]	Exactly one of message or messageexpr may be specified; otherwise, an error.badfetch event is thrown.
332	[3.1.1]	During a dialog, the interpreter can receive input from the user via the user's spoken utterance, such that the spoken utterance is one of those described by an active grammar.
333	[3.1.1]	A grammar can be specified in the format of the XML Form of the W3C Speech Recognition Grammar Specification (SRGS).
336	[3.1.1.1]	A grammar element can contain child XML elements, such that those elements taken in context of the enclosing grammar element comprise a proper SRGS grammar.
337	[3.1.1.2]	A grammar element can specify a 'src' attribute specifying a URI which returns the data of a grammar.
338	[3.1.1.2]	A document containing a grammar element specifying both a 'src' attribute and an inline grammar description causes the Interpreter to throw an 'error.badfetch' event upon fetching of the document.
344	[3.1.2]	During a dialog, the Interpreter can receive input from the user via a set of dual tone multi frequency (DTMF) key presses, such that the sequence of presses is one of those described by an active grammar.
345	[3.1.2]	A DTMF grammar can be specified using the XML form of the SRGS grammar format, as described in the SRGS specification.
346	[3.1.2]	A "xml:lang" attribute can be specified on a DTMF grammar, but has no effect upon the grammar handling.
348	[3.1.3]	A grammar element specifying a "scope" attribute as a child of a field item throws an "error.badfetch" upon parsing. [This tests scope="dialog".]
357	[3.1.3]	A grammar element specifying a "scope" attribute as a child of a link element throws an "error.badfetch" upon parsing.
359	[3.1.3]	A grammar element specifying a "scope" attribute as a child of a menu element throws an "error.badfetch" upon parsing.
361	[3.1.6]	If a grammar matches but does not return a semantic interpretation, the raw text string for the utterance will be used.
362	[3.1.6.1]	If a form-level grammar matches and returns a semantic interpretation for a field name or slot that is a non-scalar ECMAScript variable, the field will be filled with that non-scalar ECMAScript value. The selected property may be a compound object.
363	[3.1.6.1]	The slot attribute of the field element can be used to select a sub-property of the result.
364	[3.1.6.1]	A specific slot value can fill more than one field if the slot names of the fields are the same.
365	[3.1.6.2]	If the result from a field-level grammar is a simple result, it is assigned to the input item variable.
366	[3.1.6.2]	If the result from a field-level grammar is a structure and the slot name matches a property, this property is assigned to the input item variable.
367	[3.1.6.2]	If the result from a field-level grammar is neither a simple result nor a structure with a property that matches the slot name, the entire semantic result is assigned to the input item variable.
369	[4.1.3]	The interpreter fetches and plays the URI associated with the src attribute of the audio element.
370	[4.1.3]	If src and expr are specified on an audio element, error.badfetch is thrown.
371	[4.1.3]	The interpreter evaluates, fetches, and plays the URI associated with the expr attribute of the audio element.
372	[4.1.3]	If expr is set to ECMAScript undefined the audio element is ignored.
373	[4.1.3]	If the URI associated with src is unavailable, the interpreter renders the content contained by the audio element.
374	[4.1.3]	If the URI associated with expr is unavailable, the interpreter renders the content contained by the audio element.
375	[4.1.3]	If the URI associated with src is unavailable, and the audio element doesn't contain content, no error is thrown.
376	[4.1.3]	If the URI associated with expr is unavailable, and the audio element doesn't contain content, no error is thrown.
377	[4.1.4]	If the expr attribute specifies a valid ECMAScript expression, the value element evaluates it correctly.
378	[4.1.4]	If the expr attribute specifies an invalid ECMAScript expression, error.semantic is thrown.
381	[4.1.5]	When the bargein attribute is set to false on a prompt, any DTMF input buffered in a transition state is deleted from the buffer
388	[4.1.7]	If the interval specified by the timeout attribute of the prompt element is exceeded, the platform will throw a noinput event. The default is the value specified by the timeout property
389	[4.1.7]	If several prompts are queued before a field input, the timeout of the last prompt is used.
390	[5.1]	VoiceXML variables and ECMAScript variables are contained in the same variable space.
391	[5.1]	VoiceXML variables can be used in a script. Variables defined in a script can be used in VoiceXML.
392	[5.1]	script can appear everywhere that var can appear.
393	[5.1]	Variable names that violate ECMAScript rules cause an error.semantic event to be thrown.
394	[5.1.1]	Variables declared without an explicit initial value are initialized to ECMAScript undefined.
395	[5.1.1]	Variables must be declared prior to use. Assigning to an undeclared variable does not automatically create it. Instead, it results in error.semantic being thrown.
396	[5.1.1]	In a form, variables declared by var and by form items are initialized every time the form is entered. These initializations take place in document order.
397	[5.1.2]	Variables can be declared in application, document, dialog and anonymous scopes. Variables declared at one scope are visible at that scope and all more local scopes.
398	[5.1.2]	Variables in session scope can be read but not written by VoiceXML documents.
399	[5.1.2]	var and script elements that are children of the application root document's vxml element create their variables at application scope. They are no longer accessible when another application is entered.
400	[5.1.2]	var and script elements that are children of the document's vxml element create their variables at document scope. They are no longer accessible when another document is entered.
401	[5.1.2]	var and script elements that are children of a form element (but not in an anonymous scope) create their variables at dialog scope. They are no longer accessible when another dialog is entered.
402	[5.1.2]	var and script elements that are children of block, filled and catch elements (including synonyms for catch, such as nomatch) create their variables at anonymous scope.
403	[5.1.2]	Each block, filled and catch element has its own new and separate anonymous scope. The scope is no longer accessible once the element is exited.
404	[5.1.2]	Scopes are not cleared when they become inaccessible. Instead, the old scope object is left to exist (or to be garbage collected) and a new one is created and linked into the scope hierarchy. References to previously-existing scope objects will continue to access the old scope objects.
405	[5.1.2]	Each scope contains a predefined variable whose name is the same as the scope that refers to the scope itself.
406	[5.1.2]	"session", "application", "document", and "dialog" are not reserved words.
407	[5.1.2]	When executing in a document that does not have a separate application root document, the application and document scopes are the same; that is, a single scope has variables named both "application" and "document" that are references to the scope itself. This includes execution in an application root document's var and script elements.
408	[5.1.3]	Variable references match the closest enclosing scope.
416	[5.1.5]	application.lastresult$ contains an array of elements, or ECMAScript undefined.
418	[5.1.5]	Each element of application.lastresult$ contains "confidence", "utterance", "inputmode" and "interpretation" properties.
419	[5.1.5]	The "confidence" property of an element of application.lastresult$ will be a number, not less than 0.0 and not greater than 1.0.
420	[5.1.5]	The "utterance" property of an element of application.lastresult$ will be a string.
421	[5.1.5]	The "inputmode" property of an element of application.lastresult$ will be either "dtmf" or "voice".
422	[5.1.5]	The "interpretation" property of an element of application.lastresult$ will contain the interpretation as described in section 3.1.5.
423	[5.1.5]	The elements of application.lastresult$ will be sorted from highest confidence score to lowest, with ties resolved by sorting by the precedence relationship among the grammars producing the interpretations.
424	[5.1.5]	Different elements in application.lastresult$ will always differ in their utterance, interpretation, or both.
425	[5.1.5]	The number of elements in application.lastresult$ is never more than the value of the property "maxnbest", and never less than one, unless the value of application.lastresult$ itself is undefined.
426	[5.1.5]	If the value of application.lastresult$ is not undefined, application.lastresult$ itself will contain the properties confidence, utterance, inputmode and intepretation corresponding to those of application.lastresult$[0].
428	[5.1.5]	application.lastresult$ is not changed after a noinput.
430	[5.2]	Catch elements are inherited as if by copy. This affects scope resolution, further thrown events, and relative URL references.
431	[5.2.1]	The interpreter throws the named event.
432	[5.2.1]	The interpreter observes event counting when an application-defined event is thrown.
433	[5.2.1]	If neither event nor eventexpr are specified then an error.badfetch event is thrown.
434	[5.2.1]	If both event and eventexpr are specified then an error.badfetch event is thrown.
435	[5.2.1]	If both message and messageexpr are specified then an error.badfetch event is thrown.
436	[5.2.2]	A VoiceXML interpreter must execute the content within the selected event handler.
437	[5.2.2]	Anonymous scope variables _event and _message are available within the event handler.
438	[5.2.2]	Assuming no cond or count attribute specified, given a field level event handler, the interpreter must select it when the corresponding event is thrown.
439	[5.2.2]	Assuming no cond or count attribute specified and no field-level event handler, given a form-level event handler, the interpreter must select it when the corresponding event is thrown.
440	[5.2.2]	Assuming no cond or count attribute specified and no field- or form-level event handler, given a document-level event handler, the interpreter must select it when the corresponding event is thrown.
441	[5.2.2]	Assuming no cond or count attribute specified and no field-, form-, or document-level event handler, given an application-level event handler, the interpreter must select it when the corresponding event is thrown.
442	[5.2.2]	If the cond attribute of the most inner-scoped event handler evaluates to false, the interpreter must not select it and instead select the next qualifying event handler.
443	[5.2.2]	The cond attribute of an event handler must be evaluated in the context of the scope where the event is thrown.
444	[5.2.2]	The interpreter executes the event handler with highest count attribute not greater than the actual event count.
446	[5.2.2]	Event count matching takes precedence over scoping, ie on the second occurrence of an event a root document level handler with count=2 takes precedence over a field level handler with count=1
448	[5.2.2]	The interpreter maintains a separate count for each event when multiple events specified in the event attribute of the catch element.
449	[5.2.2]	If unspecified, the count attribute of the catch element defaults to 1.
450	[5.2.2]	The interpreter selects the first handler in document order when two or more event handlers have the same count attribute and scope.
451	[5.2.2]	The interpreter executes a handler that speciifies a space-delimited list of events in the event attribute when the corresponding events are thrown.
452	[5.2.2]	An event handler catches all events if the event attribute not specified.
453	[5.2.2]	An event handler catches all events for which the event attribute specifies a token prefix of the event (NB token prefix matching is done after removing trailing dots.)
454	[5.2.2]	An event handler does not catch events for which the event attribute specifies a string prefix of the event which is not a token prefix.
455	[5.2.3]	Exactly one of "next", "expr", "event" or "eventexpr" must be specified; otherwise, an error.badfetch event is thrown. Exactly one of "message" or "messageexpr" may be specified; otherwise, an error.badfetch event is thrown.
457	[5.2.3]	When event or eventexpr is specified, and the link is matched, the corresponding event is thrown.
458	[5.2.3]	When next or expr is specified, and the link is matched, the interpreter navigates to the specified URI.
460	[5.2.3]	The noinput element is executed when an noinput event is thrown.
461	[5.2.3]	The noinput element obeys the same selection and execution rules as a catch element whose event attribute is set to "noinput".
462	[5.2.3]	The noinput element has exactly equal precedence to a catch element that specifies the noinput event, ie the choice between a catch element and a noinput element at the same scope level and count is made on the basis of document order.
464	[5.2.3]	The nomatch element is executed when a nomatch event is thrown.
465	[5.2.3]	The nomatch element obeys the same selection and execution rules as a catch element whose event attribute is set to "nomatch".
466	[5.2.3]	The nomatch element has exactly equal precedence to a catch element that specifies the nomatch event, ie the choice between a catch element and a nomatch element at the same scope level and count is made on the basis of document order.
468	[5.2.3]	The error element is executed when an error event is thrown.
469	[5.2.3]	The error element is executed when a more specific error event is thrown (e.g. error.badfetch)
470	[5.2.4]	The error element is executed when an application-defined event prefixed with "error" is thrown.
471	[5.2.3]	The error element has exactly equal precedence to a catch element that specifies the error event, ie the choice between a catch element and an error element at the same scope level and count is made on the basis of document order.
472	[5.2.3]	The error element obeys the same selection rules as a catch element whose event attribute is set to "error".
473	[5.2.3]	The error element obeys the same execution rules as a catch element whose event attribute is set to "error".
474	[5.2.3]	The help element is executed when an help event is thrown.
475	[5.2.3]	The help element obeys the same selection and execution rules as a catch element whose event attribute is set to "help".
476	[5.2.3]	The help element has exactly equal precedence to a catch element that specifies the help event, ie the choice between a catch element and a help element at the same scope level and count is made on the basis of document order.
478	[5.2.4]	An event handler catches all events if the event attribute consists of a single dot (".").
479	[5.2.4]	Event handlers which specify more specific event names, eg event.foo.bar have equal precedence with event handlers that specify less specific event names, eg event.foo
480	[5.2.4]	Event handlers are executed in the context in which the event was thrown. Check for the existence of variables in the scope in which the event was thrown.
481	[5.2.4]	Event handlers are executed in the context in which the event was thrown. Check that URLs (audio/@src, goto/@next, script/@src, etc) are resolved relative to the document in which the event was thrown.
482	[5.2.5]	The interpreter must support a default cancel event handler. No audio is provided, the interpreter does not reprompt and does not exit.
483	[5.2.5]	The interpreter must support a default exit event handler. No audio is provided and the interpreter exits.
484	[5.2.5]	The interpreter must support a default error event handler. The interpreter provides platform-specific audio and exits.
485	[5.2.5]	The interpreter must support a default help event handler. The interpreter provides platform-specific audio and reprompts.
486	[5.2.5]	The interpreter must support a default noinput event handler. No audio is provided and the interpreter reprompts.
487	[5.2.5]	The interpreter must support a default nomatch event handler. The interpreter provides platform-specific audio and reprompts.
488	[5.2.5]	The interpreter must support a default maxspeechtimeout event handler. The interpreter provides platform-specific audio and reprompts.
489	[5.2.5]	The interpreter must support a default connection.disconnect event handler. No audio is provided and the interpreter exits.
490	[5.2.5]	For any other unhandled event, the interpreter provides platform-specific audio and exits
494	[5.2.6]	When the user hangs up the connection.disconnect.hangup event is thrown.
497	[5.2.6]	The nomatch event is thrown if the user says something and is not recognized.
498	[5.2.6]	The maxspeechtimeout event is thrown if the user's input exceeds the maxspeechtimeout property.
499	[5.2.6]	If the interpreter encounters a syntax error while loading a document (eg no vxml element), it throws error.badfetch in the requesting document.
500	[5.2.6]	If an invalid URL is specified for a document fetch, the interpreter throws error.badfetch.http.404 in the requesting document.
501	[5.2.6]	If a document fetch times out, the interpreter throws error.badfetch in the requesting document.
502	[5.2.6]

Spec. Reference

Abstract

For each HTTP request, the interpreter identifies itself using the User-Agent header in the format "name/version".

The interpreter must be able to freely sequence TTS and audio output.

The interpreter must be able to receive speech recognition grammar data dynamically.

The interpreter must be able to record audio received from the user.

[1.3]

If a URI does not refer to a document, the current document is assumed.

[1.3]

If a URI does not refer to a dialog, the first dialog is assumed.

[1.3.1]

A menu contains choices that can define transitions when matched.

[1.3.1]

A subdialog invokes a new dialog that once done, returns to the original context.

[1.3.1]

Upon return to the calling context all variable instances, grammars, and state information are restored.

An application root document's variables are defined and reachable via the application scope upon the loading of a document that specifies it as the application root.

An application root document's variables are not reinitialized as the user transitions between documents that both specify it as the application root.

An application root document's variables are no longer reachable from the application scope when the user transitions to a document not in that application.

An application root document's grammars are active during each time the interpreter listens, until it is unloaded.

[1.3.4]

A dialog can receive input matching a single grammar such that no other grammars are active.

[1.3.4]

A dialog can receive input matching one of several active grammars.

[1.3.4]

A user can direct interpretation in scenarios where grammars outside the current dialog are active, by matching one of these grammars, at which point execution transitions to the dialog containing the matched grammar.

[1.3.5]

The platform can throw a semantic error upon encountering an error in VoiceXML semantics.

[1.3.5]

Catch elements are inherited by enclosing elements by copy.

[1.3.6]

A link specifies a grammar that is active whenever a user is in the scope of the link.

A document may have meta elements.

A document may have var elements.

A document may have script elements.

A document may have property elements.

A document may have catch elements.

A document may have link elements.

The next dialog is determined by the previous dialog.

The version attribute is required on the vxml tag.

The xml:base attribute must be allowed on the vxml tag.

The xml:lang attribute must be allowed on the vxml tag.

The application attribute must be allowed on the vxml tag.

The value of xml:lang must be inherited down the document hierarchy by elements which also define the xml:lang attribute and do not have an alternative value.

The interpreter supports having an application root document and an application leaf document.

When a leaf document causes a root document to be loaded, none of the dialogs in the root document are executed.

Application root document variables are available for use by the leaf document.

Common ECMAScript code can be defined in the application root and used in leaf documents.

Application root catch handlers are default handlers for leaf documents.

When transitioning between two leaf documents that both specify the same application fully resolved URI then the transition must preserve the application root document's variables for use by the second leaf document.

A transition from an application leaf document to its own application root document caused by a 'goto' must preserve the application root document's variables for use by the root document.

If a transition occurs as the result of a submit between an application leaf document and its own application root document the application root document's variables must be re-initialized.

If a transition occurs from an application root document to itself then it must reinitialize the application root document's variables.

If a transition occurs from an application root document to a different application root document it must initialize the new application root document and use the new application root document's variables.

When a subdialog is invoked the original document and root document must be preserved for the completion of the subdialog.

If a document refers to a non-existent application root document, an error.badfetch event is thrown.

A document may contain a subdialog element.

A document may contain a return element.

Subdialogs add a new executable context when they are invoked.

A subdialog can be a new dialog within the existing document.

A subdialog can be a new dialog within a new document.

A subdialog can be composed of several documents.

A subdialog's new context may itself invoke a subdialog.

[1.5.4]

A VoiceXML interpreter may continue executing even after it no longer has a connection to the user.

A form may contain form items, which are subdivided into input items ( <field>, <record>, <transfer>, <object>, <subdialog>) and control items (<block> and <initial>).

A form may contain <var> elements.

A form may contain event handlers: <catch>, <error>, <help>, <noinput>, and <nomatch>.

A form may contain <filled> elements.

A form may specify an id attribute.

100

A form may specify a scope attribute which specifies the default scope of the form's grammars.

111

FIA ends when it encounters a <goto>.

112

FIA ends when it encounters a <submit>.

113

FIA ends when it encounters an <exit>.

114

FIA ends when it encounters a <return>.

138

[2.1.6.1]

The value of the name attribute of a form item defines a dialog-scoped variable that holds the value of the form item, i.e., dialog.name is a reference to the form item variable.

143

[2.1.6.1]

A form item variable does not need to have a name attribute.

145

A form may have one or more initial form items.

147

If a form has a form level grammar, its input items can be filled in any order.

148

If a form has a form level grammar, more than one input item can be filled as a result of any one user utterance.

149

A form-level grammar can fill the following form items: <field>, <record>, <transfer>, <object> and <subdialog>.

152

For all types of form item, if the form item is assigned a value, that form item is not eligible to be visited by the FIA (unless/until it is subsequently set to undefined).

153

Using the clear tag on a form item variable will make it eligible to be visited by the FIA (provided that it does not have a cond attribute evaluating to false).

154

Using the goto nextitem will force the FIA to immediately transition to the chosen form item.

163

If the last main FIA loop resulted in a goto nextitem or goto expritem then the specified form item is selected.

165

If the last main FIA loop did not result in a goto nextitem and there is no form item which is eligible to be visited then an implicit exit is generated.

183

If in the collect phase an event occurs the appropriate catch element is identified and executed in the process phase.

185

If an event handler, executed after an event is thrown while processing a form item, transfers control with a <goto> or <submit>, the FIA resumes in the new form at the initialisation phase.

186

If an event handler, executed after an event is thrown while processing a form item, does not transfer control with a <goto> or <submit> the FIA resumes in the current form at the selection phase.

187

If an input from the collect phase matches a link than the associated link's transition is executed if present.

188

If an input from the collect phase matches a link than the associated link's event is thrown if present.

189

If a link throws an event the event is processed in the context of the current form item.

190

If an input matches a grammar in a form other than the current form, then the FIA terminates and the other form is initialized.

192

If an input matches a grammar in a form other than the current form then that form's FIA starts with this input in its process phase.

195

If an input matches a grammar in the form then each identified filled action is executed in document order.

197

While executing a filled, processing of filled actions continues after a <reprompt>.

198

If an event is thrown during the execution of a <filled>, event handler selection starts in the scope of the <filled>, which could be a form item or the form itself, and then proceeds outward by enclosing dialog scopes.

200

If a menu is given an id attribute, the menu can be referenced using goto.

201

If a menu's scope attribute is set to "dialog", the menu's grammars are active only when the user transitions into the menu.

202

If a menu's scope attribute is set to "document", the menu's grammars are active over the whole document (or if the menu is in the application root document, any loaded document in the application).

203

If a menu's dtmf attribute is set to "true", the first nine choices that have not explicitly specified a value for the dtmf attribute are given the implicit ones "1", "2", etc. Remaining choices that have not explicitly specified a value for the dtmf attribute will not be assigned DTMF values (and thus cannot be matched via a DTMF keypress).

204

The dtmf attribute of choice can specify a sequence of DTMF digits. Whitespace is ignored.

205

When the DTMF associated with the choice is matched, the appropriate action is taken based on the next, expr, event or eventexpr attribute.

206

When the accept attribute of choice is set to "exact", or is not set and the accept attribute of its enclosing menu is set to "exact", or neither choice's accept attribute nor menu's is set, then the text of the choice element defines the exact phrase to be recognized. The user must say the entire phrase in the same order in which it occurs in the choice element phrase for matching this element.

208

Exactly one of the next, expr, event, and eventexpr attributes must be specified. Otherwise an error.badfetch event is thrown.

209

When the grammar associated with a choice element is matched, the URI associated with the "next" or "expr" element is fetched and transitioned to.

210

When the grammar associated with a choice element is matched, the event associated with the event or eventexpr attribute is thrown.

211

When "next" or the result of "expr" is not a correct URI, error.badfetch is thrown.

212

The message attribute defines a string that is available as the variable _message inside a catch element that catches the event being thrown.

213

The messageexpr attribute is an ECMAScript expression evaluating to the variable _message inside the catch element which catches the event being thrown.

215

If a grammar element is specified in choice, then the external grammar is used instead of an automatically generated grammar.

216

The enumerate element without content inside a prompt lists all the choices, following the order in which they appear in the menu.

217

The enumerate element with content defines a template specifier that will list all the choices. Two special variables are defined

218

An enumerate element can be used inside prompts associated with a menu element.

219

An enumerate element can be used inside catch element elements associated with a menu element.

220

An enumerate element can be used inside prompts associated with a field element that contain option elements.

221

An enumerate element can be used inside catch element elements associated with a field element that contain option elements.

222

If an enumerate element is used elsewhere, an error.semantic event is thrown.

223

Grammar matches within menu will update the application.lastresult$ array.

224

If the event handler called after matching a choice with an event or eventexpr attribute does not cause the interpreter to exit or transition control, then the FIA will clear the form item variable of the menu's anonymous field, causing the menu to be executed again.

232

The variable associated with the name attribute of the field holds the recognition result.

233

The named variable associated with the field must be unique among form items in the form; otherwise, error.badfetch is thrown.

234

If specified, the value of the expr attribute is evaluated and serves as the form item variable's initial value.

235

The default value of the expr attribute is ECMAScript undefined.

236

If the form item is initialized to a value via evaluation of the expr attribute, the form item will not be visited unless the form item variable is cleared.

237

If the cond attribute is present and its value evaluates to boolean false, the field is not visited.

238

The form item can also be visited if the cond attribute is not specified.

240

The value of the slot attribute defines the name of the grammar slot used to populate the form item variable of the field.

241

If the slot attribute is absent, the interpreter uses the value associated with the name attribute of the field to map the grammar slot to the form item variable.

242

If the value of the modal attribute is false, all active grammars are turned on while collecting this field.

243

If the value of the modal attribute is true, then only the field's grammars are enabled, and all other grammars are temporarily disabled.

244

The field element exposes a shadow variables named confidence, utterance, inputmode, and interpretation. The values of the utterance and inputmode shadow variables correspond to the values of the corresponding properties of the first object in the application-scoped lastresult$ array.

245

The confidence shadow variable is the confidence level for the name field of this interpretation and may range from 0.0-1.0. A value of 0.0 indicates minimum confidence, and a value of 1.0 indicates maximum confidence.

246

[2.3.1.1]

A field may contain a grammar element whose src attribute can specify an absolute or relative URI.

247

[2.3.1.1]

A grammar can be specified inline.

248

[2.3.1.1]

error.badfetch is thrown if a grammar specifies a src attribute and an inline grammar.

254

The PCDATA contained by an option element within a field generates a speech grammar.

255

When an option is chosen, the value attribute determines the interpretation value for the field's shadow variable and for application.lastresult$.

256

The dtmf attribute of an option element defines the DTMF sequence required for the option to be selected.

257

When the accept attribute of an option element is set to "exact", the PCDATA of the option defines the exact phrase to be recognized for the option to be selected.

258

Both option and grammar elements may be specified within a field.

259

The interpreter executes content contained in the block.

260

The interpreter visits the block when the cond attribute evaluates to true and the form item variable associated with the block is undefined.

261

The interpreter ignores the block when the form item variable associated with the block is defined via expr.

262

The interpreter ignores the block when the form item variable associated with the block is set via an assign.

263

The interpreter executes the subdialog associated with the src or srcexpr attribute.

267

If the called subdialog is in a separate document then variables from the calling document, and dialog scope are inaccessible to the subdialog.

268

The variables passed to the subdialog via the <param> element are accessible as variables within the dialog scope of the invoked subdialog. A <param> overrides the corresponding <var> expr attribute which is ignored.

269

The interpreter throws error.badfetch after the specified fetchtimeout when the URL associated with the src or srcexpr attribute points to a non-existent resource.

270

Exactly one of "src" or "srcexpr" must be specified; otherwise, an error.badfetch event is thrown.

271

If the subdialog returns a namelist, the filled element contained by the subdialog is executed upon return from the subdialog.

272

[2.3.5]

If an object element refers to an unknown object, the error.unsupported.objectname event is thrown.

273

Any DTMF keypress matching an active grammar terminates recording.

274

DTMF keypresses not matching an active grammar are ignored (and therefore do not terminate or otherwise affect recording).

275

If the termination grammar matched is a local DTMF grammar, the recording is placed in the record variable.

277

The variable associated with the name attribute references the recorded audio, and the audio can be played back using audio expr.

278

The variable associated with the name attribute of the record element can be submitted via the namelist of the submit element. The submitted audio is valid.

279

If a recording is created, the name$.duration shadow variable holds the duration (positive integer) of the recording in milliseconds.

281

The name$.size variable holds the size (positive integer) of the recording in bytes.

282

If the dtmfterm attribute is true, and the user terminates the recording by pressing a DTMF key which doesn't match any active DTMF grammar, then the name$.termchar shadow variable is set to the key pressed.

283

If the dtmfterm attribute is false, and user presses a key which does not match any active DTMF grammar, then recording is not terminated and the name$.termchar shadow variable is undefined when the recording terminates

284

name$.maxtime shadow variable is true if the recording was terminated because the duration specified by the maxtime attribute was reached.

312

When <filled> is a child of a <form>, and the mode attribute is set to "any", the filled is executed when any of the form items specified in the namelist has been filled.

313

When <filled> is a child of a <form>, and the mode attribute is set to "all", the filled is executed when all of the form items specified in the namelist have been filled.

314

A <filled> element within an input item cannot specify a mode.

315

A <filled> element within an input item cannot specify a namelist.

316

Control items may not be specified in the namelist of the <filled> element.

317

A link element may have one or more grammars that are scoped to the element containing the link.

319

When a link specifying next or expr is matched, the interpreter transitions to the document or dialog specified by next or expr.

320

A link can be a child of vxml, form, or of the form items field and initial.

321

A link at the form level has grammars active while the user is in that form.

322

If an application root document has a document-level link, its grammars are active no matter what document of the application is being executed.

323

A link at the vxml level has grammars that are active throughout the document.

324

If execution is in a modal form item, then link grammars at the form or document level are not active. [Not application?]

325

When a link that specifies event or eventexpr is matched, the specified event is thrown.

326

Events thrown as a result of matching a link are thrown at the current location in the execution, not at the location where the link is specified.

327

When a link is matched, application.lastresult$ is assigned.

328

A link may specify a message or messageexpr attribute providing additional context about the event being thrown. The message is available as the value of the _message variable within the scope of the catch element the interpreter selects to handle the event.

329

A link may specify a dtmf attribute that identifies the sequence of DTMF digits that cause the interpreter to activate the link.

330

Exactly one of next, expr, event or eventexpr must be specified; otherwise, an error.badfetch event is thrown.

331

Exactly one of message or messageexpr may be specified; otherwise, an error.badfetch event is thrown.

332

[3.1.1]

During a dialog, the interpreter can receive input from the user via the user's spoken utterance, such that the spoken utterance is one of those described by an active grammar.

333

[3.1.1]

A grammar can be specified in the format of the XML Form of the W3C Speech Recognition Grammar Specification (SRGS).

336

[3.1.1.1]

A grammar element can contain child XML elements, such that those elements taken in context of the enclosing grammar element comprise a proper SRGS grammar.

337

[3.1.1.2]

A grammar element can specify a 'src' attribute specifying a URI which returns the data of a grammar.

338

[3.1.1.2]

A document containing a grammar element specifying both a 'src' attribute and an inline grammar description causes the Interpreter to throw an 'error.badfetch' event upon fetching of the document.

344

[3.1.2]

During a dialog, the Interpreter can receive input from the user via a set of dual tone multi frequency (DTMF) key presses, such that the sequence of presses is one of those described by an active grammar.

345

[3.1.2]

A DTMF grammar can be specified using the XML form of the SRGS grammar format, as described in the SRGS specification.

346

[3.1.2]

A "xml:lang" attribute can be specified on a DTMF grammar, but has no effect upon the grammar handling.

348

[3.1.3]

A grammar element specifying a "scope" attribute as a child of a field item throws an "error.badfetch" upon parsing. [This tests scope="dialog".]

357

[3.1.3]

A grammar element specifying a "scope" attribute as a child of a link element throws an "error.badfetch" upon parsing.

359

[3.1.3]

A grammar element specifying a "scope" attribute as a child of a menu element throws an "error.badfetch" upon parsing.

361

[3.1.6]

If a grammar matches but does not return a semantic interpretation, the raw text string for the utterance will be used.

362

[3.1.6.1]

If a form-level grammar matches and returns a semantic interpretation for a field name or slot that is a non-scalar ECMAScript variable, the field will be filled with that non-scalar ECMAScript value. The selected property may be a compound object.

363

[3.1.6.1]

The slot attribute of the field element can be used to select a sub-property of the result.

364

[3.1.6.1]

A specific slot value can fill more than one field if the slot names of the fields are the same.

365

[3.1.6.2]

If the result from a field-level grammar is a simple result, it is assigned to the input item variable.

366

[3.1.6.2]

If the result from a field-level grammar is a structure and the slot name matches a property, this property is assigned to the input item variable.

367

[3.1.6.2]

If the result from a field-level grammar is neither a simple result nor a structure with a property that matches the slot name, the entire semantic result is assigned to the input item variable.

369

The interpreter fetches and plays the URI associated with the src attribute of the audio element.

370

If src and expr are specified on an audio element, error.badfetch is thrown.

371

The interpreter evaluates, fetches, and plays the URI associated with the expr attribute of the audio element.

372

If expr is set to ECMAScript undefined the audio element is ignored.

373

If the URI associated with src is unavailable, the interpreter renders the content contained by the audio element.

374

If the URI associated with expr is unavailable, the interpreter renders the content contained by the audio element.

375

If the URI associated with src is unavailable, and the audio element doesn't contain content, no error is thrown.

376

If the URI associated with expr is unavailable, and the audio element doesn't contain content, no error is thrown.

377

[4.1.4]

If the expr attribute specifies a valid ECMAScript expression, the value element evaluates it correctly.

378

[4.1.4]

If the expr attribute specifies an invalid ECMAScript expression, error.semantic is thrown.

381

When the bargein attribute is set to false on a prompt, any DTMF input buffered in a transition state is deleted from the buffer

388

[4.1.7]

If the interval specified by the timeout attribute of the prompt element is exceeded, the platform will throw a noinput event. The default is the value specified by the timeout property

389

[4.1.7]

If several prompts are queued before a field input, the timeout of the last prompt is used.

390

VoiceXML variables and ECMAScript variables are contained in the same variable space.

391

VoiceXML variables can be used in a script. Variables defined in a script can be used in VoiceXML.

392

script can appear everywhere that var can appear.

393

Variable names that violate ECMAScript rules cause an error.semantic event to be thrown.

394

[5.1.1]

Variables declared without an explicit initial value are initialized to ECMAScript undefined.

395

[5.1.1]

Variables must be declared prior to use. Assigning to an undeclared variable does not automatically create it. Instead, it results in error.semantic being thrown.

396

[5.1.1]

In a form, variables declared by var and by form items are initialized every time the form is entered. These initializations take place in document order.

397

Variables can be declared in application, document, dialog and anonymous scopes. Variables declared at one scope are visible at that scope and all more local scopes.

398

Variables in session scope can be read but not written by VoiceXML documents.

399

var and script elements that are children of the application root document's vxml element create their variables at application scope. They are no longer accessible when another application is entered.

400

var and script elements that are children of the document's vxml element create their variables at document scope. They are no longer accessible when another document is entered.

401

var and script elements that are children of a form element (but not in an anonymous scope) create their variables at dialog scope. They are no longer accessible when another dialog is entered.

402

var and script elements that are children of block, filled and catch elements (including synonyms for catch, such as nomatch) create their variables at anonymous scope.

403

Each block, filled and catch element has its own new and separate anonymous scope. The scope is no longer accessible once the element is exited.

404

Scopes are not cleared when they become inaccessible. Instead, the old scope object is left to exist (or to be garbage collected) and a new one is created and linked into the scope hierarchy. References to previously-existing scope objects will continue to access the old scope objects.

405

Each scope contains a predefined variable whose name is the same as the scope that refers to the scope itself.

406

"session", "application", "document", and "dialog" are not reserved words.

407

When executing in a document that does not have a separate application root document, the application and document scopes are the same; that is, a single scope has variables named both "application" and "document" that are references to the scope itself. This includes execution in an application root document's var and script elements.

408

[5.1.3]

Variable references match the closest enclosing scope.

416

application.lastresult$ contains an array of elements, or ECMAScript undefined.

418

Each element of application.lastresult$ contains "confidence", "utterance", "inputmode" and "interpretation" properties.

419

The "confidence" property of an element of application.lastresult$ will be a number, not less than 0.0 and not greater than 1.0.

420

The "utterance" property of an element of application.lastresult$ will be a string.

421

The "inputmode" property of an element of application.lastresult$ will be either "dtmf" or "voice".

422

The "interpretation" property of an element of application.lastresult$ will contain the interpretation as described in section 3.1.5.

423

The elements of application.lastresult$ will be sorted from highest confidence score to lowest, with ties resolved by sorting by the precedence relationship among the grammars producing the interpretations.

424

Different elements in application.lastresult$ will always differ in their utterance, interpretation, or both.

425

The number of elements in application.lastresult$ is never more than the value of the property "maxnbest", and never less than one, unless the value of application.lastresult$ itself is undefined.

426

If the value of application.lastresult$ is not undefined, application.lastresult$ itself will contain the properties confidence, utterance, inputmode and intepretation corresponding to those of application.lastresult$[0].

428

application.lastresult$ is not changed after a noinput.

430

[5.2]

Catch elements are inherited as if by copy. This affects scope resolution, further thrown events, and relative URL references.

431

The interpreter throws the named event.

432

The interpreter observes event counting when an application-defined event is thrown.

433

If neither event nor eventexpr are specified then an error.badfetch event is thrown.

434

If both event and eventexpr are specified then an error.badfetch event is thrown.

435

If both message and messageexpr are specified then an error.badfetch event is thrown.

436

A VoiceXML interpreter must execute the content within the selected event handler.

437

Anonymous scope variables _event and _message are available within the event handler.

438

Assuming no cond or count attribute specified, given a field level event handler, the interpreter must select it when the corresponding event is thrown.

439

Assuming no cond or count attribute specified and no field-level event handler, given a form-level event handler, the interpreter must select it when the corresponding event is thrown.

440

Assuming no cond or count attribute specified and no field- or form-level event handler, given a document-level event handler, the interpreter must select it when the corresponding event is thrown.

441

Assuming no cond or count attribute specified and no field-, form-, or document-level event handler, given an application-level event handler, the interpreter must select it when the corresponding event is thrown.

442

If the cond attribute of the most inner-scoped event handler evaluates to false, the interpreter must not select it and instead select the next qualifying event handler.

443

The cond attribute of an event handler must be evaluated in the context of the scope where the event is thrown.

444

The interpreter executes the event handler with highest count attribute not greater than the actual event count.

446

Event count matching takes precedence over scoping, ie on the second occurrence of an event a root document level handler with count=2 takes precedence over a field level handler with count=1

448

The interpreter maintains a separate count for each event when multiple events specified in the event attribute of the catch element.

449

If unspecified, the count attribute of the catch element defaults to 1.

450

The interpreter selects the first handler in document order when two or more event handlers have the same count attribute and scope.

451

The interpreter executes a handler that speciifies a space-delimited list of events in the event attribute when the corresponding events are thrown.

452

An event handler catches all events if the event attribute not specified.

453

An event handler catches all events for which the event attribute specifies a token prefix of the event (NB token prefix matching is done after removing trailing dots.)

454

An event handler does not catch events for which the event attribute specifies a string prefix of the event which is not a token prefix.

455

Exactly one of "next", "expr", "event" or "eventexpr" must be specified; otherwise, an error.badfetch event is thrown. Exactly one of "message" or "messageexpr" may be specified; otherwise, an error.badfetch event is thrown.

457

When event or eventexpr is specified, and the link is matched, the corresponding event is thrown.

458

When next or expr is specified, and the link is matched, the interpreter navigates to the specified URI.

460

The noinput element is executed when an noinput event is thrown.

461

The noinput element obeys the same selection and execution rules as a catch element whose event attribute is set to "noinput".

462

The noinput element has exactly equal precedence to a catch element that specifies the noinput event, ie the choice between a catch element and a noinput element at the same scope level and count is made on the basis of document order.

464

The nomatch element is executed when a nomatch event is thrown.

465

The nomatch element obeys the same selection and execution rules as a catch element whose event attribute is set to "nomatch".

466

The nomatch element has exactly equal precedence to a catch element that specifies the nomatch event, ie the choice between a catch element and a nomatch element at the same scope level and count is made on the basis of document order.

468

The error element is executed when an error event is thrown.

469

The error element is executed when a more specific error event is thrown (e.g. error.badfetch)

470

The error element is executed when an application-defined event prefixed with "error" is thrown.

471

The error element has exactly equal precedence to a catch element that specifies the error event, ie the choice between a catch element and an error element at the same scope level and count is made on the basis of document order.

472

The error element obeys the same selection rules as a catch element whose event attribute is set to "error".

473

The error element obeys the same execution rules as a catch element whose event attribute is set to "error".

474

The help element is executed when an help event is thrown.

475

The help element obeys the same selection and execution rules as a catch element whose event attribute is set to "help".

476

The help element has exactly equal precedence to a catch element that specifies the help event, ie the choice between a catch element and a help element at the same scope level and count is made on the basis of document order.

478

An event handler catches all events if the event attribute consists of a single dot (".").

479

Event handlers which specify more specific event names, eg event.foo.bar have equal precedence with event handlers that specify less specific event names, eg event.foo

480

Event handlers are executed in the context in which the event was thrown. Check for the existence of variables in the scope in which the event was thrown.

481

Event handlers are executed in the context in which the event was thrown. Check that URLs (audio/@src, goto/@next, script/@src, etc) are resolved relative to the document in which the event was thrown.

482

The interpreter must support a default cancel event handler. No audio is provided, the interpreter does not reprompt and does not exit.

483

The interpreter must support a default exit event handler. No audio is provided and the interpreter exits.

484

The interpreter must support a default error event handler. The interpreter provides platform-specific audio and exits.

485

The interpreter must support a default help event handler. The interpreter provides platform-specific audio and reprompts.

486

The interpreter must support a default noinput event handler. No audio is provided and the interpreter reprompts.

487

The interpreter must support a default nomatch event handler. The interpreter provides platform-specific audio and reprompts.

488

The interpreter must support a default maxspeechtimeout event handler. The interpreter provides platform-specific audio and reprompts.

489

The interpreter must support a default connection.disconnect event handler. No audio is provided and the interpreter exits.

490

For any other unhandled event, the interpreter provides platform-specific audio and exits

494

When the user hangs up the connection.disconnect.hangup event is thrown.

497

The nomatch event is thrown if the user says something and is not recognized.

498

The maxspeechtimeout event is thrown if the user's input exceeds the maxspeechtimeout property.

499

If the interpreter encounters a syntax error while loading a document (eg no vxml element), it throws error.badfetch in the requesting document.

500

If an invalid URL is specified for a document fetch, the interpreter throws error.badfetch.http.404 in the requesting document.

501

If a document fetch times out, the interpreter throws error.badfetch in the requesting document.

502