Hello everybody, I'm new to SER and try to write my first config file. After reading the Admin guide & the getting started Tutorial on onsip I still cannot configure my rtpproxy. In the test setup I have two systems -- 1. The Linux server ( where the SER is running) 2. one win XP system ( SIP UA). The linux server has two LAN cards one with a private IP and one with a public one. The SIP - Client has an account at a VoIP - Provider (sipgate). What I want the SER to do is to forward the call to the provider and to accept incoming calls. No authorisation or mysql things nedeed. Until now SIP - communication works, but the RTP - Stream is not forwarded correctly. I already tried to start rtpproxy as follows: 1. rtpproxy 2. rtproxy -l 10.*.*.* 3. rtpproxy -l public-IP 4. rtpproxy -l 10.*.*.*/public-IP 5. rtpproxy -l public-IP/10.*.*.* I use this config for SER: http://cvs.berlios.de/cgi-bin/viewcvs.cgi/ser/sip_router/etc/nathelper.cfg?… Thanks in advance. _____________________________________________________________________ Der WEB.DE SmartSurfer hilft bis zu 70% Ihrer Onlinekosten zu sparen! http://smartsurfer.web.de/?mc=100071&distributionid=000000000071