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Cisco
Cisco PVDM4-256 256-Channel High-Density Voice DSP Module for ISR PVDM4256
Cisco PVDM4-256 256-Channel High-Density Voice DSP Module for ISR PVDM4256
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DESCRIPTION
The Cisco PVDM4-256 is a High-Density Packet Voice Digital Signal Processor (DSP) Module that provides up to 256 channels of high-quality voice and conferencing services. Designed for Cisco Integrated Services Routers (ISR) 4000 Series, this module enables advanced voice features such as voice over IP (VoIP), conferencing, transcoding, and voice gateway services. It is essential for enterprises deploying unified communications across branch offices and remote sites.
TECHNICAL SPECIFICATIONS
Model: PVDM4-256
Type: Voice DSP Module (High-Density Packet Voice DSP)
Channel Capacity: Up to 256 channels (voice/fax)
Supported Platforms: Cisco ISR 4321, 4331, 4351, 4431, and 4451 routers
Supported Services:
– Voice and video conferencing
– Voice termination and transcoding
– Fax over IP (T.38)
– Media optimization
Slot Type: Dedicated PVDM slot on motherboard
Compatibility: PVDM4 slots only (not backward-compatible with PVDM3)
Power Consumption: Approx. 4–6 Watts
