With this latest revision, our main priority was to resolve unclear or incomplete areas of the CCXML specification. During this process several sections of the. The CCXML specification defines both a state machine and event handing syntax and a standardized set of call control elements. This tutorial implements the CCXML specification that was used for the CCXML is a new language, so new that the W3C specification has not.

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This presentation of their main capabilities and limitations should help you determine the types of applications for which they could be used. It will unconditionally terminate the session and all active connections, conferences and dialogs that are owned by that session will be automatically terminated by the platform. The intended target Connection Object state is unchanged by this event.

The identifier of the connection to which the dialog connection is bridged usually the connectionid that was specified in the dialogstart or dialogprepare. The implementation MUST allow reference to variables without requiring use of their fully qualified names.

Call Control eXtensible Markup Language – Wikipedia

For instance, passing a variable named ‘foo’ with value ” will result in the ‘session. Main concepts and terms CCXML can be used as a third-party call control manager in any telephony system. As an example, this situation could easily occur with connection.

This short discussion provides a brief introduction to VoiceXML, CCXML, and SALT for supporting speech-enabled interactive applications, call control, and multimodal applications and their important role in developing flexible and extensible standards-compliant architectures. This attribute and the starts-with attribute are mutually exclusive. Figure A and Figure B illustrate the session life-cycle of several different scenarios.


Meanwhile, the VoiceXML dialog can interact with the user, undisturbed by the incoming flow. The implementation MUST as a minimum, note the values provided via the srcnamelistand connectionid attributes, create a Dialog object, and return a new unique value to the location defined by the dialogid attribute.

The expected value with which the parameter begins. The new CCXML session has no relation to its creator once spawned, and has a wholly separate lifetime and address space.

Any large conference application requires such features. The value of the attribute must receive an internally generated unique string identifier which identifies the newly created session. If a CCXML application knows that it is going to have 20 participants in a conference, it can use this attribute to ensure all required resources are available to handle all 20 callers.

This example is not meant to be a complete application and does not handle all error events but is rather meant to give an specificatiin of what such an application may look like. An ECMAScript expression that evaluates to a string at run-time providing information about the probable cause for failure.

Every fetch request must receive a unique fetch identifier, even if the request is for the same URI.

While CCXML implementations are not necessarily intended for battery powered embedded devices, it is intended to be used in large, real-time telephony platforms managing thousands of lines. The send element must return immediately, but the event must not be dispatched until the delay interval elapses. VoiceXML Session variables are updated whenever there is an update to the associated connection or conference.


Lets place specificatkon call.

An ECMAScript expression which returns a string that is the address where the call should be redirected to. If the event source can receive events, you can use this in the targettype attribute of send. Note that this does not mean that the target processed the message spedification.

All events MUST contain an eventsource attribute containing a unique identifier for the event source.

Voice Browser Call Control: CCXML Version 1.0

Other variable declared in this part of the XSLT must not be changed because they are part of the framework. A specific stylesheet transforms the meta markup language used to write the tests into valid CCXML 1.

The implementation MUST resolve variables by searching the enclosing transition scope first if applicable followed by the ccxml scope, the application scope and then the session scope, unless the variable reference is qualified with a scope prefix. The HTTP response code. Each Connection has one input by which it receives a media stream from another Connection or Conference.

Sets an Expires HTTP response header to a date calculated by adding the value of the expires attribute to the current time.