Hi, Does anyone have a idea what can cause this error message? I have installed OpenSER with WeSIP and small HelloWorld Servlet. When tring to send INVITE message I get the following WeSIP trace: SipProcessor [ExpressMChannel[6]] - An incoming message is being assigned SipProcessor [SipProcessor[4]] - <<<<<<<<< Request Received <<<<<<<<< INVITE sip:shie_sip2@192.168.2.100 SIP/2.0 Via: SIP/2.0/UDP 192.168.2.102:5061;rport;branch=z9hG4bK23208 To: <sip:shie_sip2@192.168.2.100> From: "Shie" <sip:shie_sip@192.168.2.100>;tag=9844 Call-ID: 1206715243-3208-SHIE(a)10.108.3.122 CSeq: 751 INVITE Max-Forwards: 19 User-Agent: NCH Swift Sound Express Talk 3.06 Contact: <sip:shie_sip@192.168.2.102:5061> Allow: INVITE,CANCEL,ACK,BYE,INFO,OPTIONS,NOTIFY,REFER Supported: replaces Content-Type: application/sdp Content-Length: 352 SeasHashTable [SipProcessor[4]] - Inserting hashIdx:9320 label:781080043 into hashTable SipProcessor [SipProcessor[4]] - Transaction [z9hG4bK23208] is new Transaction?? --> true EngineSipMapper [SipProcessor[4]] - Request from 192.168.2.100 mapped to: ConvergedEngine[Standalone].StandardHttpHost[localhost] ConvergedEngineValve [SipProcessor[4]] - Invoking Host:localhost ConvergedHostValve [SipProcessor[4]] - SipSession not found for requestINVITE, trying match against Rules ConvergedHost [SipProcessor[4]] - Mapped request to:/HelloWorldServlet ConvergedContextValve [SipProcessor[4]] - new session created :1206715243-3208-SHIE@10.108.3.122 StandardProxy [SipProcessor[4]] - sip:shie_sip2@192.168.2.100 Added to proxying targets. StandardProxy [SipProcessor[4]] - doProxy: proxying to sip:shie_sip2@192.168.2.100 StandardProxy [SipProcessor[4]] - ========== Request Sent ============== INVITE sip:shie_sip2@192.168.2.100 SIP/2.0 Via: SIP/2.0/UDP 192.168.2.100:5060,SIP/2.0/UDP 192.168.2.102:5061;rport;branch=z9hG4bK23208 To: <sip:shie_sip2@192.168.2.100> From: "Shie" <sip:shie_sip@192.168.2.100>;tag=9844 Call-ID: 1206715243-3208-SHIE(a)10.108.3.122 CSeq: 751 INVITE Max-Forwards: 18 User-Agent: NCH Swift Sound Express Talk 3.06 Contact: <sip:shie_sip@192.168.2.102:5061> Allow: INVITE,CANCEL,ACK,BYE,INFO,OPTIONS,NOTIFY,REFER Supported: replaces Content-Type: application/sdp Record-Route: <sip:192.168.2.100:5060;lr=on;transport=udp> Content-Length: 352 StandardProxy [SipProcessor[4]] - javax.sip.TransactionUnavailableException: no route! SipConnector [SipProcessor[4]] - recycle: Recycling processor SipProcessor[4] ExpressMessageChannel [ExpressMChannel[6]] - Done processing INVITE sip:shie_sip2@192.168.2.100 SIP/2.0 Thanks in advance, Shie