Supported Architecture - 3Com VCX V7122 User Manual

Caller can place multiple successive calls without re-entering the account and password
numbers (authentication and authorization are applied without collecting the information
from the user again)
Supports Cisco gateway RADIUS functionality
Interoperates with standard RADIUS-based (AAA) billing servers
Supports 240 concurrent calls running a VXML script
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

Supported Architecture

Figure 85
VCX V7122 Supported Architecture
Figure 85 illustrates 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:
VCX V7122 - 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
VCX V7122 (the VoiceXML interpreter) request.
RADIUS Server – A centralized Authentication, Authorization and Accounting server for
remote access users that communicate via the RADIUS protocol.
238 3Com VCX V7122 SIP VoIP Gateway User Manual