My Cisco 2921 came shipped with two preinstalled VWIC3-2MFT-T1/E1, and I had no problems adding it as MGCP gateway to my new CUCM BE6000 version 9.1. However, even though both VWIC3's appear nicely at show inventory, they seem completely dead. All LED's are dark, even when looping Tx-Rx.
show version gives "(C2900-UNIVERSALK9-M), Version 15.2(4)M3", which I think is sufficient for VWIC3. However, this is the situation right now:
show isdn status returns "Invalid input detected at..."
show controllers E1 returns no output at all
show mgcp endpoint returns no output at all
Any experts out there?