I bought a WIC-1DSU-T1 card that is compatible with my current IOS version. The module NM-2FE2W (for cisco 3640) that holds the WIC needs a newer IOS version so the router doesn't recognise the card. I can remember how to copy the flash via tftp, b...

I use a cisco 3640 router at the center of my network. Remote nodes have cisco 1601s connecting over 56k dedicated lines. It is time to change. We think it is time to get a T1 up to a frame cloud that all of the other sites feed into. I am just s...