CCXML SPECIFICATION PDF

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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These scenarios are described below. Such functionality is especially valuable for outbound applications – such as an appointment reminder service – where any delay after answering but before prompt playback is uncomfortable for the call recipient.

Voice Browser Call Control: CCXML Version 1.0

CCXML is designed to be neutral with respect to the telephony layer, so the event set must be very generic and capable of describing the behavior of a wide variety of systems e. Implementers MAY define and support any platform-specific events they like. When a session terminates, it implicitly detaches from any conferences to which it is still attached. This document has been produced as part of the Voice Browser Activity. In this example, the session is started due to an incoming call.

Signaling System 7 [ SS7 ]. All other content is only accessible via the content attribute of the fetch.

VoiceXML Review – Features – CCXML Update

The manner in which the message is displayed or logged is platform-dependent. The unique identifier of the event source. The value of the attribute must receive an internally generated unique string identifier which identifies the newly created session. For instance, s;ecification is useful to be able to generate a ccxml.

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The createcall must fail if not completed by the end of this interval. If for any reason the implementation is unable to terminate the bridge between the specified connections, or if no such bridge exists, it MUST fail with a error. Properties that are not indicated as required only appear on an instance of the Connection object if they have a value.

Other documents may supersede this document. CSTA however, cccml various details of underlying signalling protocols e. If a name is specified, the size of the file upload is compared to the value of the specified CGI parameter.

If the value of the fetch param attribute is ‘session. Events are queued on a first-in, first-out FIFO basis, except where specific exceptions are noted in the specification for certain events. Reason returns a string that is the reason the call is being disconnected. As such, a session cannot bridge a Media Endpoint that it owns to a Media Endpoint that is owned by another session, nor can it establish a bridge between two Media Endpoints owned by another session. The ID of the Connection with which the Connected referenced by this event was merged.

This attribute must not be specified in conjunction with the name attribute. W3C maintains a public list of any patent disclosures made in connection with the deliverables of the group; that page also includes instructions for disclosing a patent. Variables in the application scope are subject to the parent scope chain delegation model and have session as their parent scope. These attributes control how the platform should dispatch the event to its final destination.

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CCXML may also receive events from Connection and Conference Objectsin the case of line signaling, line-status informational messages, or error and failure scenarios. If the connectionid attribute is omitted, the interpreter must redirect using the id indicated in the current event being processed.

For incoming calls, the selection of the initial URI and fetching parameters is platform-dependent, and MAY be based on information from the incoming call. This attribute must not be specified in conjunction with the src attributeotherwise ignored.

Variables defined in the ccxml scope are initialized in document order when the psecification is loaded. The Dialog class currently has no defined properties.

A tutorial on Call Control XML and voice browser call control

If a conference already exists the platform must return the conference identifier of the previously created conference. If the connection id attribute value is invalid or there is no valid default value, an error.

This event is sent to the parent session and not the session that was terminated.