Hi all - I'm trying to configure my FS box to run on the same server as an OpenSIPs instance, and I think I'm having a problem because, when FS adds a Record-Route header to the 200 OK, it does not specify the port. So, my endpoint is sending the ACK back to OpenSIPs, not to FS, and it keeps looping on me. The 200 OK from FS running on port 5070: 15:21:29.330683 IP 192.168.153.13.vtsas > 192.168.153.13.sip: SIP, length: 1044 E..0.N..@. ........SIP/2.0 200 OK Via: SIP/2.0/UDP 192.168.153.13;branch=z9hG4bK36e1.59a34dc3.0 Via: SIP/2.0/UDP 192.168.153.28;branch=z9hG4bKebe2bd1a967399c3d Record-Route: <sip:192.168.153.13;lr=on> From: <sip:D05@192.168.153.13>;tag=8739e6ff4f To: <sip:MEETME01@192.168.153.13>;tag=F5yXe7FeFH6jg Call-ID: c0bd06789074500d CSeq: 498777857 INVITE Contact: <sip:MEETME01@192.168.153.13:5070;transport=udp> User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-62c6855 2012-02-27 13-28-27 -0600 Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, UPDATE, INFO, REGISTER, REFER, NOTIFY Supported: timer, precondition, path, replaces Allow-Events: talk, hold, refer Content-Type: application/sdp Content-Disposition: session Content-Length: 217 Remote-Party-ID: "MEETME01" <sip:MEETME01@192.168.153.13>;party=calling;privacy=off;screen=no v=0 o=FreeSWITCH 1333103289 1333103290 IN IP4 192.168.153.13 s=FreeSWITCH c=IN IP4 192.168.153.13 t=0 0 m=audio 17600 RTP/AVP 0 a=rtpmap:0 PCMU/8000 a=silenceSupp:off - - - - a=ptime:10 m=audio 0 RTP/AVP 19 The ACK comes back to 5060, and loops: 15:21:29.338255 IP 192.168.153.13.sip > 192.168.153.13.sip: SIP, length: 599 ....._..ACK sip:192.168.153.13;lr=on SIP/2.0 Via: SIP/2.0/UDP 192.168.153.13;branch=z9hG4bK36e1.59a34dc3.2 Via: SIP/2.0/UDP 192.168.153.28;branch=z9hG4bK01e5c3b7e9a67e0dd Proxy-Authorization: Digest username="D05",realm="192.168.153.13",nonce="4f75cf9700005326420497c8c462fb80c60a857e0d0049ee",uri="sip:MEETME01@192.168.153.13",response="961b9d5a496f610d10fd136fecf0291c" Max-Forwards: 69 From: <sip:D05@192.168.153.13>;tag=8739e6ff4f To: <sip:MEETME01@192.168.153.13>;tag=F5yXe7FeFH6jg Call-ID: c0bd06789074500d CSeq: 498777857 ACK User-Agent: ATC ION M5T SIP Stack/4.1.8.13 Content-Length: 0 Any thoughts? Thanks in advance. Thomas -- Thomas McCarthy-Howe Sent with Sparrow (http://www.sparrowmailapp.com/?sig)