I have a 1760 router that have two wic cards on slot 0 and 1. And 2 vic 4fxs/did cards on slot 2 and 3.
Problem is that the two vic4fxs/did cards, don't show up on hardware list, there is a green light on the slot 2 and 3 that is OK, the 4 ports on each card are amber, but the router doesn't reconize the card.
Is ther any comand that I have to do to enable the card on the slot, for fxs?
Most likely you're missing the necessary DSP module to support the voice interface.
Do "show diag" to see what do you have in the router.
For example, a PVDM-256K-8 would be enough for 8 analog voice ports, but not for additional ones.
Hope this helps, please rate post if it does!