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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The identifier of the connection to which the dialog was connected to usually the connectionid that was specified in the dialogstart or dialogprepare. The ” createsession ” processor is intended as a minimal interoperable mechanism to allow external components to create new sessions in CCXML 1. Otherwise, the HTTP response code is set to “”. Checks may be nested. Please refer to the errata for this document, which may include some normative corrections.

CCXML Implementation Report Plan

Such a declaration is required when the character encoding of the document is other than the default UTF-8 or UTF and no encoding was determined by a higher-level protocol. The initial version number must be 1. A full bridge is established between connections c2 and c3, connection c1 is still receiving from c2. It can receive events from Voice Dialogswhich may be standardized events such as dialog.

Note that when the xmlns attribute is used alone, it sets the default namespace for the element on which it appears and for any child elements. What advantages or disadvantages result from a combination of both?


This variable must be defined using the var or the script element in the ccxml scope. Platforms MAY choose to add properties to events. This identifier can be tested by the fetch completion event handler to distinguish among several outstanding fetch requests.

This attribute is only valid in conjunction with the src attributeotherwise ignored.

A tutorial on Call Control XML and voice browser call control

An object which provides additional platform or protocol dependent information. Reason that the session ended. The working group feels this should be the last revision with any major technical changes.

The system identifier may be modified appropriately. The components as shown in the figure below represent logical functions, and are not meant to imply any particular architecture. The name has the value of the ” name ” parameter. CCXML events specificatoin describe these operations are defined below:.

The new CCXML session has no relation to its creator once spawned, and has a wholly separate lifetime and address space. Due to the way ECMAScript treats var declarations the initial ID will evaluate as undefined as ECMAScript adds a implicit var declaration to the top of the script and changes the var to an assignment leaving you with something that is executed as if it was written like this:.

The scope in which the variable is defined must be determined from the position in the document at which the variable is defined. CCXML may also receive events from Connection and Conference Objects, in the case of line signaling, line-status informational messages, or error and failure scenarios.

The identifier of the connection to which the dialog connection is prepared usually the connectionid that was specified in the dialogprepare.


This can happen for any number of common reasons — target status busy, no answer, etcinvalid destination number, insufficient resources, and others. They can be created only by assigning a value to a property of the application object application. In this example we catch a dialog. Note that the value of the src attribute must not be an ECMAScript expression in order to allow it to be resolved at compile-time. A description of the reason the dialog had an error. Due to how ECMAScript var statements work, declarations are applied before assignments no matter where they are placed in the code.

It has been designed to meet the needs of resource-constrained environments.

Note, however, that platforms may impose rules that prevent one session from arbitrarily killing another to prevent malicious applications, for instance.

Not used for the current implementation of the framework. If the connectionid attribute is omitted, the interpreter must redirect using the id indicated in the current event being processed. An ECMAScript expression that returns a character string that must be used to play a tone or a custom wav file to the conference participants when this Connection joins. URI The developer may also specify a URI value which points to a user-defined wav file to be played instead of the default system beep.

It is possible for Dialogs to exist that are not joined to a Connection or a Conference. The implementation MUST instantiate a variable within the scope of the closest containing scope element.