Nortel Networks TP-1610 SIP user manual Implementation, Basic Calling Card IVR Scenario

Mediant 2000 SIP User’s Manual K. RADIUS Billing and VXML Calling Card Application

K.4 Implementation

The Mediant 2000 uses an embedded VoiceXML interpreter to interpret and execute standard VoiceXML scripts, which are loaded from an outbound HTTP server and stored in the gateway’s volatile memory (RAM). The predefined VoiceXML scripts (up to 10 different scripts are supported) determine the development of the call according to the caller’s responses (DTMF digits) and AAA (Authentication, Authorization and Accounting) information exchanged with a RADIUS server. Interaction with the caller is conducted using a set of audio messages (stored in a single Voice Prompts file in the gateway’s flash/RAM memory) on the gateway’s side, and by pressing DTMF digits on the subscriber’s side.

K.4.1 Basic Calling Card IVR Scenario

Figure K-2: Basic Call Scenario

Note: Some messages have been omitted from the above drawing for the sake of clarity.

Version 4.4 247 July 2005