Low Density Netwrok Modules for Cisco 3600 Router

Unanswered Question
Jan 19th, 2010

Hi All,

  I am setting up Voip Lab at home, I have got 3640 and 1751 router, but I need to buy NM-2V and FXO and FXS cards to make them work in voice lab. I am in this area, could someone please help me by answering my following queries and also any suggession to built voice labs for CCVP.

1. Do I need to buy DSP (PVDM) seperately for 3600 series router or they are already installed in NM2V module?

2. Which IOS I have to use for 1751 and 3640 routers?

3. How much memory Flash and DRAM required in each router?

I would also appreciate it if you could ref any documentation or suggesions to get a good start.

Many thanks,


I have this problem too.
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