REFURBISHED WITH A 90 DAY CCS WARRANTY!!!
The Cisco Forth-generation Analog voice network interface card NIM-4E/M integrates 4 ports ear and mouth (E/M) to support tie-line facilities or signals between telephone switches. The network interface card NIM-4E/M with Cisco 4000 series router connects to PBX system delivers VOIP with the legacy voice solution. The new generation analog voice network module has build-in DSP (Digital signal processor) and does not require the router to have the dedicated PVDM on the motherboard, and it also provides for echo cancellation of up to 128-ms echo-tail for demanding network conditions.
Compatibility : Cisco 4451-X Integrated Services Router, 4451-X Integrated Services Router Security Bundle, 4451-X Integrated Services Router Voice and Video Bundle, 4451-X Integrated Services Router Voice Security Bundle
Cisco Part Numbers : NIM-4E/M, NIM-4E/M=
UPC : 00882658634529