I have question on SRST. I recently installed a new 3925. I setup SRST on it. We are using MGCP and call manager 8.6 . I attempted to test failover ( by the way, using ccm-manager failover) . All the phones registered in SRST mode, no problem. The issue is trying to make a outbound call. The IP phone will only let us dial 4 digits. I can't find where you can adjust this or even set it . Could use some help. thanks.
Please refer to the following doc:
Sounds like you dont have any dial-peers configured for outbound dialing (step 4 in the doc above).
Do you use four digit dialing between sites? Can you post the relevant dial-peers/translations? What kind of network do you have outbound? ISDN PRI? Do you have a debug from the gateway showing digits for calling and called number etc??
Please pull the following debugs and upload it here:
debug isdn q931
debug voip ccapi inout
Also, please post the running config along with "show dial-peer voice summary".