Have a SIP trunk between CS1000 and IP Ofice, caller on IP Office can call anyone on the CS1000 and able to grab a trunk to go out. However, callers from CS1000 can not dial any extesnoin on the IP Office. It tells them to relase and try again. Here is a system log from that call to IP Office.
UDP 172.16.110.100:5060 -> 172.16.41.20:5060
SIP/2.0 200 OK
From: <sip:Unknown@abc.ca>;tag=58ab3a35be22f532
To: <sip:Unknown@abc.ca>;tag=6aae638-646e10ac-13c4-55013-90f819-16a67809-90f819
Call-ID: ea7e4b3d7455b2acf9cc2424abef183d@172.16.41.20
CSeq: 1685276274 OPTIONS
Allow: INVITE,ACK,BYE,REGISTER,REFER,NOTIFY,CANCEL,PRACK,OPTIONS,INFO,SUBSCRIBE,UPDATE
Via: SIP/2.0/UDP 172.16.41.20:5060;rport=5060;branch=z9hG4bKe7473b7d5bd0f69816ca1821c7d4e22a
Supported: 100rel,x-nortel-sipvc,replaces,timer
User-Agent: Nortel CS1000 SIP GW release_7.0 version_ssLinux-7.50.17
Content-Length: 0
Not sure what needs to be done on either side?
UDP 172.16.110.100:5060 -> 172.16.41.20:5060
SIP/2.0 200 OK
From: <sip:Unknown@abc.ca>;tag=58ab3a35be22f532
To: <sip:Unknown@abc.ca>;tag=6aae638-646e10ac-13c4-55013-90f819-16a67809-90f819
Call-ID: ea7e4b3d7455b2acf9cc2424abef183d@172.16.41.20
CSeq: 1685276274 OPTIONS
Allow: INVITE,ACK,BYE,REGISTER,REFER,NOTIFY,CANCEL,PRACK,OPTIONS,INFO,SUBSCRIBE,UPDATE
Via: SIP/2.0/UDP 172.16.41.20:5060;rport=5060;branch=z9hG4bKe7473b7d5bd0f69816ca1821c7d4e22a
Supported: 100rel,x-nortel-sipvc,replaces,timer
User-Agent: Nortel CS1000 SIP GW release_7.0 version_ssLinux-7.50.17
Content-Length: 0
Not sure what needs to be done on either side?