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Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Configuring Next-Generation High-Density PVDM3 Modules
Prerequisites for Configuring the PVDM3 Module on Cisco Voice Gateway Routers
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Configuration Examples for Configuring the PVDM3 Module on Cisco Voice Gateway Routers,
page 201
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Additional References, page 206
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Prerequisites for Configuring the PVDM3 Module on Cisco Voice
Gateway Routers
To configure the PVDM3 Module on your Cisco 2900 or Cisco 3900 series voice gateway router, you
must have Cisco IOS Release 15.0(1)M or a later release installed. The image must provide a
voice-capable feature set.
To configure the PVDM3 Module on your Cisco 3925E or Cisco 3945E voice gateway router you must
have Cisco IOS Release 15.1(1)T or later release installed. The image must provide a voice-capable
feature set.
If you have installed the PVDM3 cards in your Cisco gateway, make certain that you have complied with
the hardware installation instructions in
Cisco 2900 Series and 3900 Series Integrated Services Routers
Restrictions for Configuring the PVDM3 Module on Cisco Voice
Gateway Routers
The PVDM3 card can only be installed and used on the following Cisco voice gateway routers:
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Cisco 2901 and Cisco 2911 (each router supports up to two PVDM3 modules)
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Cisco 2921 and Cisco 2951 (each router supports up to three PVDM3 modules)
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Cisco 3925 and Cisco 3945 (each router supports up to four PVDM3 modules)
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Cisco 3925E and Cisco 3945E (each router supports up to three PVDM3 modules)
All codecs that are supported on the PVDM2 are supported on the PVDM3, except that the PVDM3 does
not support the G.723 (G.723.1 and G.723.1A) codecs. The PVDM2 can be used to provide G.723 codec
support or the G.729 codec can be as an alternative on the PVDM3.
The PVDM3 DSP does not support Cisco Fax Relay. The PVDM2 (5510 DSP) does support Cisco Fax
Relay.
The coexistence of PVDM2 and PVDM3 modules on the same motherboard is not supported. If these
two modules are installed on the same motherboard, the PVDM2 is shut down.