I have three ip office 500 rls 8 switches. Site A has sip trunks to site B. Site A has sip trunks to site C. I have a pri set to Qsig to a Nortel Option 11c from site A. Sites B and C have there own pri"s for local dialing. I can place sip calls from site A to B and from A to C . The problem I am having is site C wants to call site B on the sip trunks. The call goes to Site A and I get 404 not found. I have the incoming routes set for recive digits and the short code in the destination to Site B.I also have short codes set up from A to the Nortel option 11c switch. This is all for 4 digit dialing between locations. This problem happens in either direction. Any suggestions would be helpful.