CCXML TUTORIAL PDF

CCXML – or Call Control XML – is the W3C standard markup language for controlling CCXML Reference and Tutorial; VoiceGenie’s CCXML Tag Reference. CCXML – or Call Control XML – is the W3C standard markup language for controlling Aspect also provides a complete CCXML reference guide and tutorials. For additional support telephone numbers, see the Avaya Web site: http://support. 2 Avaya CCXML User Guide. August

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The first draft of CCXML specification appeared in the earlyand still remains in a working draft status. However, lack of final recommendation is not an obstacle for telecom industry, and there already exist several CCXML implementations tutorrial products like OpenCall Media Platform from Hewlett Packard or the open-source Asterisk platform.

Voice Browser Call Control: CCXML Version 1.0

Call Control XML is designed to provide telephony call control support for dialog systems, such as VoiceXML It also can be used as a third-party call control manager in any telephony system. Telephone applications need to receive and process large numbers of events in real-time. These events arrive from outside the program itself—either the underlying telephony platform, or from other sources of events.

CCXML also provides a powerful and flexible method of creating multi-party calls. The downloadable version of this article contains all of the code examples in easy to use text files. CCXML can be used as a third-party call control manager in any telephony system. Originally there was an intention to add new tags to VoiceXML to support the new features.

One session can span multiple documents and phone calls. Media streams between Connections, or between Connections and Conference objects, need to be tracked by the CCXML interpreter and will take real system resources. A Voice Dialog, when active, is associated with a specific Connection by which cczml Voice Dialog may interact with one-way or two-way media streams from other Connections or a Conference Object.

A Conference Object models a resource for mixing media streams. CCXML may also receive events from Connection and Conference Objects, in the case of line signaling, line-status informational tutofial, or error and failure scenarios. Any other interaction takes place through the event mechanism.

Examples of events are incoming phone calls, dialog actions or user defined events. Now let’s have a look at some real examples and try to understand what is done there. The first example Example1. This is called document initialization. Its “event” attribute is a pattern that indicates a matching event type.

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Event types are dot-separated strings of arbitrary length. The manner in which the message is displayed or logged is platform-dependent. CCXML events can be delivered at any time and from a variety of sources. This tutrial event-handling mechanism is essential for many telephony applications. Each running CCXML interpreter has a queue, into which it places incoming events, and sorts them by arrival time.

Tutoriwl are two exceptions to this behavior: When a delay is specified the event is delivered to the target CCXML session but it is not placed on to the event queue until the delay time has elapsed. When the delay has elapsed the event is placed at the tail of the queue.

Voice Browser Call Control: CCXML Version

This should be however, not a must equivalent to the transition presented in D efault-transition. When a session is started due to an incoming call, it has ownership of the event endpoint associated with the new Connection. Such variables include session information such as a session identifier, the reason for what the session was started, list of all Connection objects, and so on.

A CCXML application can determine the reason its session was started by evaluating the contents of the session. When a CCXML session ends, all active connections, conferences and dialogs that are owned by that session are automatically terminated by the platform.

A connection is typically shorter than a session. A session does not end when a connection terminates. Figure A and Figure B illustrate the session life-cycle of several different scenarios. In our “hello world” example Example1. These are not only life-cycle scenarios; sessions can also have multiple sequential connections, or even have multiple concurrent connections.

The application answers an incoming phone call and then connects it to a VoiceXML dialog that returns a value that is then logged to the tutoral Example2. After the dialog interaction is complete, an asynchronous event is sent to the CCXML session which can use any results returned by the dialog environment to decide what should happen next.

The CCXML session is notified when the dialog operation successfully completes, or fails, by an asynchronous event. Execution of this element connects a dialog environment to a connection and instructs it to start interacting with the caller.

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If the dialog cannot be started for any reason, an error.

When the dialog completes, a dialog. The method of the message passing is up to the platform but it is assumed that there is some basic capacity in place. The VoiceXML dialog can therefore focus exclusively on interaction tjtorial the user. When a VoiceXML dialog is bridged to a connection with an associated call leg, the standard VoiceXML session variables obtain their values from the call leg.

Otherwise, these variables are undefined. VoiceXML Session variables are updated whenever there is an update to the associated connection or conference. Call control includes handling incoming calls, placing outgoing calls, bridging or conferencing multiple call legs, and ultimately disconnecting calls. It seems that CCXML has a bright future in telecom industry, partially because there is a strong demand for a unified application interface.

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Our editors highlight the TechRepublic articles, galleries, and videos that you absolutely cannot miss to stay current on the latest IT news, innovations, and tips. Main concepts and terms CCXML can be used as a third-party call control manager in any telephony system. My Profile Log Out. Free Newsletters, In your Inbox. Tech News You Can Use We deliver the top business tech news stories about the companies, the people, and the products revolutionizing the planet.

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