Product Description
Cisco PVDM3-128
Details : Cisco Systems PVDM3-128 128-channel high-density voice and video DSP module
The Cisco PVDM3-128 (High Density Packet Voice Digital Signal Processor Module) allows Cisco 2900 and 3900 series routers to provide high quality communication services, such as high density voice and video, conferencing, and secure voice through the Cisco Unified Communications Solutions (UCS) platform. PVDM3-128 DSPs additionally perform pressure, jitter and reverberate administration, and voice-action discovery to lessen foundation clamor.
The PVDM3 provides higher density and more processing power than the PVDM2, making the addition of rich-media applications possible. Enhanced DSP architecture accommodates a packet-processing engine optimized for rich-media voice and video applications, while concurrently supporting the time-division multiplexing IP (TDM-IP) voice framework used by the PVDM2.
When shopping for a PVDM, be sure to take your maximum estimated call density into account, as PVDM3 units come in several sizes, ranging from PVDM3-16 all the way to PVDM3-256. The numerical suffix of each DSP represents the max number of G.711 voice calls that PVDM3 can support, so you want to be sure to overshoot the number of concurrent calls you expect on your network during peak usage in order to provide optimal service.
PVDM3-128's are perfect with all Cisco 2900 and 3900 arrangement switches - in spite of the fact that the quantity of PVDM spaces changes from unit to unit. Cisco 2901 and 2911 units offer 2 PVDMs, 2921 and 2951 switches provide 3 PVDMs, and 3925 and 3945 switches offer 4 PVDMs.
Keep this in mind as well, as PVDM3s of different sizes can be mixed and matched, allowing end users to avoid over-purchasing hardware to fit their specific voice needs. For example, if a user needs to allow for 140 simultaneous G.711 calls, they may find it more affordable to buy a PVDM3-128 and a PVDM3-16, rather than upgrad