I added the SIP server as a SIP trunk on the UC560. For calls that are made (from the SIP server), the UC560 replies back with a 500 internal error message. The only way I am able to get this to work is as following.
- setup a DID to route to a user
- setup user to forward all calls over the T1 circuit to a external number
This seems like a configuration isuse, but would like some help. At a high level they would essentially want to use the UC560 as a T1 gateway. Is there a way to have the UC560 route all calls from a SIP trunk out to the T1 circuit?
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