Hi All I have the following setup Openser Server A --> Uses Localhost MySQL Server Openser Server B --> Uses ServerA MySQL server Each server is in a different location. Both servers share the same database. I.e. in other words a user can successfully logon to either server. Both servers have a similar configuration file. My problem at hand is the following User A and User C logon to Server A User B logs on to Server B I need user A or user C to be able to call user B. I am using t_replicate for this setup. The relevant config section is found below: if(src_ip == OTHERSERVER) { xlog("L_INFO","PACKET FROM 9 PEER SERVER"); save("location"); }else{ xlog("L_INFO","NORMAL Packet"); if(is_method("REGISTER")){ if(!www_authorize("sero.test.net", "subscriber")){ www_challenge("sero.ahwar.net", "1"); return; } save("location"); t_replicate("sip:OTHERSERVER:5060"); return; } I have looked at traces and it seems to me that if a user logs on to a server t_replcicate forwards those register packets to the second server. However the second server is not reponding to those register packets it is replying with Bad Request replies U OriginatingServer:5060 -> Target_of_Treplicate:5060 REGISTER sip:OriginatingServer SIP/2.0. Via: SIP/2.0/UDP OriginatingServer;branch=z9hG4bKe47f.4bd99ca4.0. Via: SIP/2.0/UDP 192.168.0.176:45374;received=193.227.186.146;branch=z9hG4bK-d87543-00509 f6c6f4a047f-1--d87543-;rport=45374. Max-Forwards: 69. Contact: <sip:9613041705@193.227.186.146:45374;rinstance=1367153d6d22ca20>;expire s=0. To: "9613041705"<sip:9613041705@OriginatingServer>. From: "9613041705"<sip:9613041705@OriginatingServer>;tag=7d242230. Call-ID: MmE3MTlmZDhiYWI0NjNmZjI5NWU5Njg1MmNhNDUwMDU.. CSeq: 6 REGISTER. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO. User-Agent: X-Lite release 1006e stamp 34025. Authorization: Digest username="9613041705",realm="sero.ahwar.net",nonce="484653b8b642971aef30 31dfa8d894fa90a4faf3",uri="sip:OriginatingServer",response="fd7943d66556 832aff9abcba071a9d85",cnonce="4f6aa73e9cba374f",nc=00000001,qop=auth,alg orithm=MD5. Content-Length: 0. . U Target_of_Treplicate:5060 -> OriginatingServer:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP OriginatingServer;branch=z9hG4bKe47f.4bd99ca4.0. Via: SIP/2.0/UDP 192.168.0.176:45374;received=193.227.186.146;branch=z9hG4bK-d87543-00509 f6c6f4a047f-1--d87543-;rport=45374. To: "9613041705"<sip:9613041705@OriginatingServer>;tag=991a35e6ab26c1f4ea62d e8176a0818c.502f. From: "9613041705"<sip:9613041705@OriginatingServer>;tag=7d242230. Call-ID: MmE3MTlmZDhiYWI0NjNmZjI5NWU5Njg1MmNhNDUwMDU.. CSeq: 6 REGISTER. Server: OpenSER (1.3.2-notls (i386/linux)). Content-Length: 0. . U OriginatingServer:5060 -> Target_of_Treplicate:5060 REGISTER sip:OriginatingServer SIP/2.0. Via: SIP/2.0/UDP OriginatingServer;branch=z9hG4bK4cef.3d1bfc.0. Via: SIP/2.0/UDP 192.168.0.176:7988;received=193.227.186.146;branch=z9hG4bK-d87543-221288 3e6a0dc710-1--d87543-;rport=7988. Max-Forwards: 69. Contact: <sip:9613041705@192.168.0.176:7988;rinstance=c1ac0eda25c39951>. To: "9613041705"<sip:9613041705@OriginatingServer>. From: "9613041705"<sip:9613041705@OriginatingServer>;tag=7f0b7450. Call-ID: MGJhNmM1ZDdlZmNmNWQ2ODZkOWE4YWEwNzkzNmEzMzA.. CSeq: 2 REGISTER. Expires: 3600. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO. User-Agent: X-Lite release 1006e stamp 34025. Authorization: Digest username="9613041705",realm="sero.ahwar.net",nonce="484653c5b066afdc9b4d 3bc20faa9e549e1bbe93",uri="sip:OriginatingServer",response="fc7ee7ed4e3c 68f85de2a298f7579421",cnonce="42f3c2c5b71b4623",nc=00000001,qop=auth,alg orithm=MD5. Content-Length: 0. . U Target_of_Treplicate:5060 -> OriginatingServer:5060 SIP/2.0 400 Bad Request. Via: SIP/2.0/UDP OriginatingServer;branch=z9hG4bK4cef.3d1bfc.0. Via: SIP/2.0/UDP 192.168.0.176:7988;received=193.227.186.146;branch=z9hG4bK-d87543-221288 3e6a0dc710-1--d87543-;rport=7988. To: "9613041705"<sip:9613041705@OriginatingServer>;tag=991a35e6ab26c1f4ea62d e8176a0818c.7860. From: "9613041705"<sip:9613041705@OriginatingServer>;tag=7f0b7450. Call-ID: MGJhNmM1ZDdlZmNmNWQ2ODZkOWE4YWEwNzkzNmEzMzA.. CSeq: 2 REGISTER. Contact: <sip:9613041705@192.168.0.176:7988;rinstance=c1ac0eda25c39951>;expires=5 67. P-Registrar-Error: Invalid CSeq number. Server: OpenSER (1.3.2-notls (i386/linux)). Content-Length: 0. . U OriginatingServer:5060 -> Target_of_Treplicate:5060 REGISTER sip:OriginatingServer SIP/2.0. Via: SIP/2.0/UDP OriginatingServer;branch=z9hG4bK5cef.dfe76626.0. Via: SIP/2.0/UDP 192.168.0.176:7988;received=193.227.186.146;branch=z9hG4bK-d87543-022b94 01307f967e-1--d87543-;rport=7988. Max-Forwards: 69. Contact: <sip:9613041705@192.168.0.176:7988;rinstance=c1ac0eda25c39951>;expires=0 . To: "9613041705"<sip:9613041705@OriginatingServer>. From: "9613041705"<sip:9613041705@OriginatingServer>;tag=7f0b7450. Call-ID: MGJhNmM1ZDdlZmNmNWQ2ODZkOWE4YWEwNzkzNmEzMzA.. CSeq: 3 REGISTER. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO. User-Agent: X-Lite release 1006e stamp 34025. Authorization: Digest username="9613041705",realm="sero.ahwar.net",nonce="484653c5b066afdc9b4d 3bc20faa9e549e1bbe93",uri="sip:OriginatingServer",response="9ded822006fa 51735838d3fdea96800b",cnonce="68a12fcb5c00aeaf",nc=00000002,qop=auth,alg orithm=MD5. Content-Length: 0. . U Target_of_Treplicate:5060 -> OriginatingServer:5060 SIP/2.0 200 OK. Via: SIP/2.0/UDP OriginatingServer;branch=z9hG4bK5cef.dfe76626.0. Via: SIP/2.0/UDP 192.168.0.176:7988;received=193.227.186.146;branch=z9hG4bK-d87543-022b94 01307f967e-1--d87543-;rport=7988. To: "9613041705"<sip:9613041705@OriginatingServer>;tag=991a35e6ab26c1f4ea62d e8176a0818c.93c8. From: "9613041705"<sip:9613041705@OriginatingServer>;tag=7f0b7450. Call-ID: MGJhNmM1ZDdlZmNmNWQ2ODZkOWE4YWEwNzkzNmEzMzA.. CSeq: 3 REGISTER. Server: OpenSER (1.3.2-notls (i386/linux)). Content-Length: 0. . U OriginatingServer:5060 -> Target_of_Treplicate:5060 REGISTER sip:OriginatingServer SIP/2.0. Via: SIP/2.0/UDP OriginatingServer;branch=z9hG4bK2cef.bec40741.0. Via: SIP/2.0/UDP 192.168.0.176:7988;received=193.227.186.146;branch=z9hG4bK-d87543-ea14ff 1ac524e10c-1--d87543-;rport=7988. Max-Forwards: 69. Contact: <sip:9613041705@193.227.186.146:7988;rinstance=7d4ba8842a9e4a7e>. To: "9613041705"<sip:9613041705@OriginatingServer>. From: "9613041705"<sip:9613041705@OriginatingServer>;tag=7f0b7450. Call-ID: MGJhNmM1ZDdlZmNmNWQ2ODZkOWE4YWEwNzkzNmEzMzA.. CSeq: 4 REGISTER. Expires: 3600. Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO. User-Agent: X-Lite release 1006e stamp 34025. Authorization: Digest username="9613041705",realm="sero.ahwar.net",nonce="484653c5b066afdc9b4d 3bc20faa9e549e1bbe93",uri="sip:OriginatingServer",response="f126d934be4b 12c32a8ec783097a2ff6",cnonce="e3d03c6f36863764",nc=00000003,qop=auth,alg orithm=MD5. Content-Length: 0. . U Target_of_Treplicate:5060 -> OriginatingServer:5060 SIP/2.0 400 Bad Request. Via: SIP/2.0/UDP OriginatingServer;branch=z9hG4bK2cef.bec40741.0. Via: SIP/2.0/UDP 192.168.0.176:7988;received=193.227.186.146;branch=z9hG4bK-d87543-ea14ff 1ac524e10c-1--d87543-;rport=7988. To: "9613041705"<sip:9613041705@OriginatingServer>;tag=991a35e6ab26c1f4ea62d e8176a0818c.5d32. From: "9613041705"<sip:9613041705@OriginatingServer>;tag=7f0b7450. Call-ID: MGJhNmM1ZDdlZmNmNWQ2ODZkOWE4YWEwNzkzNmEzMzA.. CSeq: 4 REGISTER. Contact: <sip:9613041705@193.227.186.146:7988;rinstance=7d4ba8842a9e4a7e>;expires =566. P-Registrar-Error: Invalid CSeq number. Server: OpenSER (1.3.2-notls (i386/linux)). Content-Length: 0. .