User guide

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Cisco Media Gateway Manager 5.0 User Guide
OL-5461-02
Chapter 3 Planning the Network
What Network Elements Are Available to a Network Planner?
3.2.5 Cisco Voice Interworking Service Module
The Cisco Voice Interworking Service Module (VISM-PR) is a packet voice module for the Cisco
MGX 8880 Media Gateway and the Cisco MGX 8000 Series multiservice switches. The Cisco VISM-PR
offers robust packet voice functions for service providers and enterprise customers, and supports full 8
T-1s/E-1s capacity for G.711, G.726 and G.729ab codecs.
The VISM-PR provides high quality voice, fax, and modem services. The VISM-PR can be deployed in
standalone configurations or with softswitches to enable a variety of packet voice services in network
architectures using MGCP, PacketCable TGCP, H.323, and SIP.
The VISM-PR allows you to easily add packet voice services to existing Cisco MGX 8000 Series
multiservice networks.
The VISM-PR provides the following features:
• High density voice aggregation:
– Up to 20 VISM-PR per MGX 8880 MG chassis
– 1: N redundancy
– Channelized T3/OC-3/STM-1 via SRME Module
• Distributed card architecture:
– Dedicated high-performance DSP resources
– Dual control processors to eliminate processing bottlenecks
– No loss of DS0 Density under any configuration (ECAN, codec)
• Dynamic DSP allocation:
– G.711, G.726, G.729ab, G.723.1, T.38 Fax, clear channel
– VAD and comfort noise generation
– Programmable 24, 32, 64, 128 ms echo cancellation
– DTMF / MF detection / generation
3.2.6 Cisco Route Processor Module
The Cisco Route Processor Module-Premium (RPM-PR) is a high-performance route processor module
for the Cisco MGX 8000 Series of multiservice switches, which allows service providers to quickly
enable new, high-margin IP services using Cisco IOS Software. The Cisco RPM-PR provides
high-quality, scalable, IP and ATM integration using Multiprotocol Label Switching (MPLS) technology
to create scalable Internet solutions. The Cisco RPM-PR allows the addition of an MPLS control plane
for use by the Cisco Virtual Switch Architecture. The MPLS control plane can be used concurrently with
the PNNI and Media Gateway Control Protocol (MGCP) control planes on the Cisco MGX 8000 series
of multiservice switches.
The Cisco RPM-PR brings enhanced performance and functionality to the RPM module’s router blades
for the Cisco MGX 8880 and Cisco MGX 8850. Improvements include a high-performance, NPE-400
processor capable of processing more than 350,000 packets per second (pps), greater DRAM and Flash
capacity, and hardware-based error checking and correction (ECC).
The Cisco RPM-PR enables functionality such as Point-to-Point Protocol (PPP) aggregation, IP VPNs,
IP QoS, and IP routing.