I have a VWIC-1MFT-E1 in wic slot 1 of a 2621xm router running cisco IOS 12.4(17).
However I cannot confiure my pri-group under controller e1 command.
I cannot also do a show isdn status command.
Is there something I need to turn on?
You need DSP to configure card as PRI, and you don't have that.
You would need AIM-VOICE-30 that is a card that goes inside the router, or an NM-HD-xxx to host the VWIC. The first alternative is probably cheaper. The second one, when acquiring a network module supporting the latest generation DSP called PVDM2, would give you more feature and a longer technological lifespan.
Hope this helps, please rate post if it does!