Nortel Networks TP-1610 SIP user manual Supported Architecture

Mediant 2000 SIP

•Loads the VXML scripts once and stores them in the RAM; scripts can be changed without the need of reset

•Barge-in dialing (to shorten menu time), once prompt has started

K.3 Supported Architecture

Figure K-1: Mediant 2000 Supported Architecture

Figure K-1illustrates standard Calling Card IVR application architecture. The figure depicts in general terms an incoming PSTN IP call being conveyed to the IP network.

The architecture comprises the following components:

•Mediant 2000 - The PSTN gateway that includes the VoiceXML interpreter which generates events in response to user actions (e.g., spoken or character input received, disconnect) and system events (e.g., timer expiration). These events are acted on by the VoiceXML interpreter itself, as specified by the VoiceXML document.

•HTTP Server – (Document Server), sends out the VoiceXML script in response to the Mediant 2000 (the VoiceXML interpreter) request.

•RADIUS Server – A centralized Authentication, Authorization and Accounting server for remote access users that communicate via the RADIUS protocol.

•VoiceBrowser - (not shown in this diagram), responsible for the TTS (Text to Speech) and ASR (Automatic Speech Recognition) services (not supported in this version).

•Proxy Server – Standard management tool for SIP networks. Performs essential control, administrative and managerial functions.

•MediaPack – Analog media gateway, provides excellent voice quality and optimized packet voice, fax and modem streaming over the IP network.

Mediant 2000 SIP User’s Manual 246 Document #: LTRT-72504