Техническая Спецификация для Cisco Cisco MGX 8880 Media Gateway
Data Sheet
All contents are Copyright © 1992–2007 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information.
Page 1 of 6
Cisco Voice Switch Service Module
The Cisco
®
Voice Switch Service Module (VXSM) is a high-density voice module for the
Cisco MGX
®
8880 Media Gateway and Cisco MGX 8000 Series Multiservice Switches.
The Cisco VXSM offers high availability, scalable and robust voice features for wireless,
wireline, and cable applications.
Product Overview
The Cisco VXSM is a high-density voice service module with time-division multiplexing (TDM)
interfaces ranging from T1/E1 to channelized OC-3/STM-1 (refer to Figure 1). It provides service
providers with carrier-class capabilities for high capacity and reliability for voice-over-IP (VoIP)
services. The Cisco VXSM scales to 8064 DS0s per module and is fully redundant to maintain
active calls upon switchover.
The Cisco VXSM architecture combines a high-performance voice services engine with onboard
digital signal processors to provide advanced voice processing and features that allow quick
development and deployment of VoIP services. The Cisco VXSM offers carrier-grade voice quality
with a full suite of voice, modem, and fax features. The Cisco VXSM, together with a softswitch,
provides maximum deployment flexibility for various packet voice networks based on the Media
Gateway Control Protocol (MGCP), PacketCable™ Trunking Gateway Control Protocol (TGCP),
H.248, H.323, and Session Initiation Protocol (SIP).
The innovative Cisco VXSM architecture provides investment protection with its ability to easily
add new functions and services through software upgrades.
Figure 1. Cisco VXSM (Front and Back Cards)