| Model: | PVDM4-128 Router Voice DSP Module |
| Detail: | 128-channel high-density voice and video DSP module |
The Cisco® Packet Voice Digital Signal Processor Modules (PVDMs) enables Cisco 4000 Series Integrated Services Routers (ISRs) to provide rich-media capabilities such as high-density voice connectivity, conferencing, transcoding, media optimization, transrating, and secure voice for Cisco Unified Communications solutions. These new modules support an unprecedented scale while allowing for a smaller solution footprint than ever before.
Features and Benefits The PVDMs support digital voice connections, conferencing, universal transcoding, and media optimization services: ● T1/E1 voice: One of the primary uses of PVDMs is to packetize digital voice into IP packets to enable time-division multiplexing (TDM) digital voice applications. ● Conferencing: PVDM modules support ad hoc and meet-me conferencing with various codecs in conjunction with Cisco Unified Communications Manager and Cisco Unified Communications Manager Express. ● Universal transcoding: In conjunction with Cisco IOS® Software, the PVDMs support universal transcoding, which allows conversion from any supported codec to any other supported codec. ● Transrating: The PVDMs support transrating, in which the same codec is repacketized in order to connect dissimilar networks that have different codec packetization periods. ● Voice-quality management: The PVDMs perform compression, voice-activity detection, jitter management, and echo cancellation. The echo cancellation offered in the PVDMs has a tail length of 128 milliseconds and complies with ITU-T G.168. ● Energy savings: The motherboard PVDMs (PVDM4s) offer multiple power-saving modes, including a power-saver mode when the module is not in use. In power-saver mode, each PVDM4 can save up to 5 watts of power. The analog voice modules (FXS, FXO, and E/M) and Basic Rate Interface (BRI) digital voice modules for the 4000 Series ISRs contain built-in, nonconfigurable digital signal processors (DSPs) and do not require any additional PVDMs for voice packetization.| Product Code | PVDM4-128 |
| Slot | On-board motherboard or T1/E1 module slot |
| Description | 128-channel high-density voice DSP module |
| Low Complexity | 128 |
| Medium Complexity | 96 |
| High Complexity | 64 |
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| Model: | PVDM4-128 Router Voice DSP Module |
| Detail: | 128-channel high-density voice and video DSP module |
The Cisco® Packet Voice Digital Signal Processor Modules (PVDMs) enables Cisco 4000 Series Integrated Services Routers (ISRs) to provide rich-media capabilities such as high-density voice connectivity, conferencing, transcoding, media optimization, transrating, and secure voice for Cisco Unified Communications solutions. These new modules support an unprecedented scale while allowing for a smaller solution footprint than ever before.
Features and Benefits The PVDMs support digital voice connections, conferencing, universal transcoding, and media optimization services: ● T1/E1 voice: One of the primary uses of PVDMs is to packetize digital voice into IP packets to enable time-division multiplexing (TDM) digital voice applications. ● Conferencing: PVDM modules support ad hoc and meet-me conferencing with various codecs in conjunction with Cisco Unified Communications Manager and Cisco Unified Communications Manager Express. ● Universal transcoding: In conjunction with Cisco IOS® Software, the PVDMs support universal transcoding, which allows conversion from any supported codec to any other supported codec. ● Transrating: The PVDMs support transrating, in which the same codec is repacketized in order to connect dissimilar networks that have different codec packetization periods. ● Voice-quality management: The PVDMs perform compression, voice-activity detection, jitter management, and echo cancellation. The echo cancellation offered in the PVDMs has a tail length of 128 milliseconds and complies with ITU-T G.168. ● Energy savings: The motherboard PVDMs (PVDM4s) offer multiple power-saving modes, including a power-saver mode when the module is not in use. In power-saver mode, each PVDM4 can save up to 5 watts of power. The analog voice modules (FXS, FXO, and E/M) and Basic Rate Interface (BRI) digital voice modules for the 4000 Series ISRs contain built-in, nonconfigurable digital signal processors (DSPs) and do not require any additional PVDMs for voice packetization.| Product Code | PVDM4-128 |
| Slot | On-board motherboard or T1/E1 module slot |
| Description | 128-channel high-density voice DSP module |
| Low Complexity | 128 |
| Medium Complexity | 96 |
| High Complexity | 64 |
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