SIP Trunk Issue

[voxvar]

Customer SIP trunk is showing out of service.
The SIP Trunk Provider sent me this
Here is the message that we are getting back from the PBX on those calls:
SIP/2.0 503 Service Unavailable
Via: SIP/2.0/UDP 208.85.62.102:5060;branch=z9hG4bK+f70a2c3d4c5773d3d8151f351da0a9741+sip+1+cedb0dba
From: "FLORIDA VOXVAR " <sip:8634090429@208.85.62.102:5060>;tag=208.85.62.102+1+8b334fe7+88dfe076
Call-ID: 0gQAAC8WAAACBAAALxYAANEZpsc8gjJqFZff683vAG7MrSoaFPdlPA79wgkFVvqY@208.85.62.102
CSeq: 388533789 INVITE
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,NOTIFY,UPDATE
Supported: timer
Server: IP Office 9.0.5.0 build 972
Reason: Q.850;cause=41;text="Temporary failure"

Content-Length: 0

 

[derfloh]

That's not very much of information...

What about you SIP trunk, URI, Users SIP tab and Lan interface VoIP settings.

Look at SysMon and/or SSA and try to find out why IPO does not accept the call. I would think of a missing ICR or a user's SIP tab mismatch. Create a */*/* URI and corresponding ICRs.