CHAPT ER
6-1
Cisco AS5350XM and Cisco AS5400XM Universal Gateways Card Installation Guide
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6
Voice Feature Card
This chapter describes the voice feature card and includes the following sections:
•Overview, page 6-1
•Online Insertion and Removal of the Voice Feature Card, page 6-3
•Replacing PVDM2 Modules in the Voice Feature Card, page 6-8
•Getting Help, page 6-11
•Where to Go Next, page 6-11
Overview
High-density packet voice digital signal processor (DSP) modules (PVDM2) installed on the voice
feature card convert voice and fax calls into IP packets or frames that can be transmitted as voice over
IP (VoIP) over a variety of transport technologies on Cisco AS5350XM and Cisco AS5400XM universal
gateways. The number of calls supported depends on the number of PVDM2 modules installed on the
voice feature card, and the number of voice feature cards installed in the chassis.
The voice feature card supports a 64-channel PVDM2 (AS5X-PVDM2-64) module. You can install up
to six AS5X-PVDM2-64 modules on each voice feature card. Table 6 -1 describes the maximum number
of channels supported by each AS5X-PVDM2-64 module and the maximum number of channels
supported by a voice feature card with six AS5X-PVDM2-64 modules installed.
Note A Cisco AS5350XM or Cisco AS5400XM universal gateway with the maximum number of PVDM2
modules installed can take up to 6 minutes to boot from power-on to system ready.
Table6-1 Maximum Number of Channels Available on a Voice Feature Card with
AS5X-PVDM2-64 Modules
Codec Type
Maximum Number of Channels
per AS5X-PVDM2-64
Maximum Number of Channels
per VoiceFeature Card
Low complexity (G.711) 64 384
Medium complexity (G.726, G.729a,
G.729ab, T.38 fax relay)
32 192
High complexity (G.729, G.729b,
G.723.1, GSM-AMR, modem relay)
24 144