How does an application maintain state across VoiceXML pages?
Either HTTP cookies or VoiceXML/JavaScript variables may be used to maintain application state across the execution of VoiceXML pages. Just like a Web browser, the Tellme Platform allows a Web site to set and retrieve cookies associated with a user’s session. A session begins when Tellme answers a call, and ends when the call is finished. Cookies on the Tellme Platform follow all of the same rules as Web cookies with regards to content, expiration periods and security. By default, all cookies are session cookies, and will disappear at the end of the user’s call. Persistent cookies may also be created, but require that callers first be identified using their Tellme sign-in numbers and passwords. Please contact Tellme for further information on this capability. VoiceXML application variables and JavaScript variables may also be used to maintain state across VoiceXML pages. Values stored in these variables may be accessed anywhere within the context of the same VoiceXML application.
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