Just a quickie, I have a Cisco 1841 connected to the internet via an del connection. On the inside of the network i have a bicom pbx, this is an asterisk based PBX. It is configured with a number of extensions and some SIP trunks. The SIP trunks Show as being registered and I can call into the phone system, however the outbound calls are not succeeding, the outbound call makes an announcement trying secondary and tertiary trunks but is unsuccessful..
Played around with some allow rules but must be missing something.
Looking for someone with Cisco and SIP skills to get this box back up and running..