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Cisco VISM Installation and Configuration Guide
Release 3.0, Part Number OL-2521-01 Rev. D0, June 2004
Chapter4 Configuring VISM Features
Configuring Additional VISM Features
•Private Network-to-Network Interface Priority Routing
•Additional SPVC Connection Management Capabilities
Call Agent-Controlled VoATM AAL1 and AAL2 SVC
The following operating modes are supported with software Release 3.0(0) for VISM/VISM-PR:
•VoAAL1 switched virtual circuit (SVC), supported with the G.711 codec and clear channel.
Note VAD is not supported in combination with AAL1 SVCs.
•VoAAL2 SVC, supported with the G.711, G.726, G.729a, G.729ab, and G.723 codecs and ITU
profiles 1, 2, 3, 7, 8, and custom profiles 100, 101, 110, and 200.
Note CAS is not supported in combination with switched virtual circuits.
Use the cnfvismmode command to configure VISM operating modes.
Note This feature requires you to use a PXM1E or PXM45 in your M GX 80 00 Ser ies sw itch ch ass is.
AAL1 SVC-Based TDM Hairpinning
VoAAL1 switched virtual circuit (SVC) operating mode is supported with the G.711 codec and clear
channel. The AAL1 SVC operating mode supports TDM hairpinn i ng.
Note VAD is not supported in combination with AAL1 SVCs. CAS is not supported in
combination with SVCs
Use the cnfvismmode command to configure VISM operating modes.
Note This feature requires you to use a PXM1E or PXM45 in your M GX 80 00 Ser ies sw itch ch ass is.
High Complexity Codec Support for VISM-PR—G.723.1
The VISM-PR card supports high complexity codec G.723.1 in template number 4. Template number 4
supports all the codecs in template number 3 and the following:
•G.723.1 high rate (6.3Kbps)—G.723.1-H
•G.723.1 high rate with VAD—G.723.1a-H
•G.723.1 low rate (5.3Kbps)—G.723.1-L
•G.723.1 low rate with VAD—G.723.1a-L