Benefits; Features - 3Com VCX V7122 User Manual

A
PPENDIX
C C
ALLING
The VCX V7122 calling card application capability (included in its IVR - Interactive Voice
Response - feature) enables Internet Telephony Service Providers (ITSPs) to provide a VoIP
telephone service to subscribers who have purchased calling cards in advance.
The subscriber market for calling cards is growing exponentially worldwide. Calling cards are
often much cheaper than collect calls and operator-assisted calls made through long
distance providers and local phone companies. VoIP service providers, using the VCX
V7122, can further reduce costs for calling card subscribers and substantially reduce
implementation time, making the service extraordinarily attractive both for them and their
subscribers.

Benefits

Using the VCX V7122, telephony service providers can offer the calling card service over a
VoIP network and thereby:
Lower the cost and deployment time that a PSTN calling-card service requires
Achieve voice quality comparable to toll quality
Acquire a cost-effective, reliable VoIP network infrastructure
IVR functionality can be located at the edge of the network (distributed functionality) or in
a central location
Connect with the PSTN over carrier interfaces
Interoperate with other VoIP service providers and other vendors' VoIP equipment
Become part of a world-wide network of other VoIP service providers interested in
interconnecting

Features

PSTN IP and IP PSTN distributed IVR architecture
AAA (Authentication, Authorization, Accounting) over standard RADIUS (Remote
Authentication Dial In User Service/Service) - stored on a RADIUS server
Provides comprehensive management of accounting and billing support
CDRs (Call Detail Reports) over RADIUS (stored on a RADIUS server)
Post-paid applications (Billing model: credit)
Pre-paid application (Billing model: debit). When credit is exhausted the call is
disconnected (a short Prompt is played prior to disconnection)
Common internal, on-board, Voice Prompts (in flash memory) for all VoiceXML (Voice
Extensible Markup Language) scripts
Multiple VXML scripts stored on external HTTP server (up to 10 different scripts)
3Com VCX V7122 SIP VoIP Gateway User Manual
J: RADIUS B
A
ARD PPLICATION
ILLING AND
237