B-4
Cisco VISM Installation and Configuration Guide
Release 3.0, Part Number OL-2521-01 Rev. D0, June 2004
AppendixB VISM and VISM-PR—3.0 Specifications
VISM-PR Card Specifications
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G.726-16k
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G.726-24k
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G.726-40k
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G.723-H
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G.723a-H
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G.723.1-L
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G.723.1a-L
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Tone detection and generation
•High functionality negotiated on demand for channels using the following:
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Adaptive Differential Pulse Code Modulation (ADPCM)
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Code Excited Linear Prediction (CELP)
•Multiple packetization format in the following modes:
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Voice over IP (VoIP) switching/trunking
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VoIP with Real time Transport Protocol (RTP) in AAL5
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Switched AAL1 switched virtual circuits (SVC)
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Switched AAL2 SVC
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Switched AAL2 PVC—this operating mode is not supported in VISM Release 3.0
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AAL2 trunking
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VoIP and Switched ATM AAL1 SVC
•High-density aggregation, providing the following:
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8 T1/E1s of PCM voice
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192 T1 or 248 E1 DS0s per VISM-PR card
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4608 T1 or 5952 E1 DS0s per chassis shelf
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13824 T1 or 17856 E1 DS0s per rack (3 MGX 8000 series switch chassis per rack)
See Chapter1, “Overview of the VISM and VISM-PR Cards” for information about installing and using
VISM and VISM-PR cards in your MGX 8000 series switch chassis.