<div dir="ltr">Hello Daniel,<div><br></div><div>Thanks for replying back !</div><div><br></div><div>And please accept my apologies for responding late. I tried modifying the configuration file to do a far-end NAT traversal but this case (wifi to 3G) is still not working.</div><div><br></div><div>Below is the trace of what is happening on my systems - </div><div><br></div><div><div><font size="1">Registration of UAC Behind WiFi</font></div><div><font size="1">*******************************</font></div><div><font size="1"><br></font></div><div><font size="1">UAC ------> Proxy</font></div><div><font size="1">-----------------</font></div><div><font size="1"><br></font></div><div><font size="1">REGISTER sip:188.227.178.226 SIP/2.0</font></div><div><font size="1">Via: SIP/2.0/UDP 59.178.140.180:5060;branch=z9hG4bK.MAq2ODF9T;rport</font></div><div><font size="1">From: <<a href="mailto:sip%3A181085@188.227.178.226">sip:181085@188.227.178.226</a>>;tag=BQR7JcwOi</font></div><div><font size="1">To: <a href="mailto:sip%3A181085@188.227.178.226">sip:181085@188.227.178.226</a></font></div><div><font size="1">CSeq: 25 REGISTER</font></div><div><font size="1">Call-ID: GCOzYfxLqw</font></div><div><font size="1">Max-Forwards: 70</font></div><div><font size="1">Supported: replaces, outbound</font></div><div><font size="1">Contact: <<a href="mailto:sip%3A181085@59.178.140.180">sip:181085@59.178.140.180</a>>;+sip.instance="<urn:uuid:b368e9b2-d156-4377-8e5e-b1b6f293de45>"</font></div><div><font size="1">Expires: 3600</font></div><div><font size="1">User-Agent: LinphoneAndroid/3 (belle-sip/1.3.2)</font></div><div><font size="1">Authorization: Digest realm="188.227.178.226", nonce="555b738d000137e5140acc6ffeafac33d1aafa6094b3da16", username="181085", uri="sip:188.227.178.226", response="d622655dcae5c6861c05e71533cb445e"</font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1">Proxy ------> SIP Server</font></div><div><font size="1">------------------------</font></div><div><font size="1"><br></font></div><div><font size="1">REGISTER sip:188.227.178.226 SIP/2.0</font></div><div><font size="1">Via: SIP/2.0/UDP 104.222.98.124:7878;branch=z9hG4bKf61e.10e33f9242f9bab1186af8c0d860f197.0</font></div><div><font size="1">Via: SIP/2.0/UDP 59.178.140.180:5060;received=59.178.140.180;branch=z9hG4bK.MAq2ODF9T;rport=5060</font></div><div><font size="1">From: <<a href="mailto:sip%3A181085@188.227.178.226">sip:181085@188.227.178.226</a>>;tag=BQR7JcwOi</font></div><div><font size="1">To: <a href="mailto:sip%3A181085@188.227.178.226">sip:181085@188.227.178.226</a></font></div><div><font size="1">CSeq: 25 REGISTER</font></div><div><font size="1">Call-ID: GCOzYfxLqw</font></div><div><font size="1">Max-Forwards: 69</font></div><div><font size="1">Supported: replaces, outbound</font></div><div><font size="1">Contact: <<a href="mailto:sip%3A181085@59.178.140.180">sip:181085@59.178.140.180</a>>;+sip.instance="<urn:uuid:b368e9b2-d156-4377-8e5e-b1b6f293de45>"</font></div><div><font size="1">Expires: 3600</font></div><div><font size="1">User-Agent: LinphoneAndroid/3 (belle-sip/1.3.2)</font></div><div><font size="1">Authorization: Digest realm="188.227.178.226", nonce="555b738d000137e5140acc6ffeafac33d1aafa6094b3da16", username="181085", uri="sip:188.227.178.226", response="d622655dcae5c6861c05e71533cb445e"</font></div><div><font size="1">P-hint: outbound</font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1">SIP Server ------> Proxy</font></div><div><font size="1">------------------------</font></div><div><font size="1"><br></font></div><div><font size="1">SIP/2.0 200 OK</font></div><div><font size="1">Via: SIP/2.0/UDP 104.222.98.124:7878;received=104.222.98.124;rport=7878;branch=z9hG4bKf61e.10e33f9242f9bab1186af8c0d860f197.0</font></div><div><font size="1">Via: SIP/2.0/UDP 59.178.140.180:5060;received=59.178.140.180;branch=z9hG4bK.MAq2ODF9T;rport=5060</font></div><div><font size="1">From: <<a href="mailto:sip%3A181085@188.227.178.226">sip:181085@188.227.178.226</a>>;tag=BQR7JcwOi</font></div><div><font size="1">To: <a href="mailto:sip%3A181085@188.227.178.226">sip:181085@188.227.178.226</a>;tag=66565ae6872f3b1972fa74c2273140bf.91f7</font></div><div><font size="1">CSeq: 25 REGISTER</font></div><div><font size="1">Call-ID: GCOzYfxLqw</font></div><div><font size="1">Contact: <<a href="mailto:sip%3A181085@59.178.140.180">sip:181085@59.178.140.180</a>>;expires=120</font></div><div><font size="1">Server: OpenSIPS (1.8.3-notls (x86_64/linux))</font></div><div><font size="1">Content-Length: 0</font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1">Proxy ------> UAC</font></div><div><font size="1">-----------------</font></div><div><font size="1"><br></font></div><div><font size="1">SIP/2.0 200 OK</font></div><div><font size="1">Via: SIP/2.0/UDP 59.178.140.180:5060;received=59.178.140.180;branch=z9hG4bK.MAq2ODF9T;rport=5060</font></div><div><font size="1">From: <<a href="mailto:sip%3A181085@188.227.178.226">sip:181085@188.227.178.226</a>>;tag=BQR7JcwOi</font></div><div><font size="1">To: <a href="mailto:sip%3A181085@188.227.178.226">sip:181085@188.227.178.226</a>;tag=66565ae6872f3b1972fa74c2273140bf.91f7</font></div><div><font size="1">CSeq: 25 REGISTER</font></div><div><font size="1">Call-ID: GCOzYfxLqw</font></div><div><font size="1">Contact: <<a href="mailto:sip%3A181085@59.178.140.180">sip:181085@59.178.140.180</a>>;expires=120</font></div><div><font size="1">Server: OpenSIPS (1.8.3-notls (x86_64/linux))</font></div><div><font size="1">Content-Length: 0</font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1">Registration of UAC on 3G</font></div><div><font size="1">*************************</font></div><div><font size="1"><br></font></div><div><font size="1">UAC ------> Proxy</font></div><div><font size="1">-----------------</font></div><div><font size="1"><br></font></div><div><font size="1">REGISTER sip:188.227.178.226 SIP/2.0</font></div><div><font size="1">Via: SIP/2.0/UDP 106.201.89.50:5060;branch=z9hG4bK.TZ8-sBaxi;rport</font></div><div><font size="1">From: <<a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a>>;tag=bL0ESqY70</font></div><div><font size="1">To: <a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a></font></div><div><font size="1">CSeq: 25 REGISTER</font></div><div><font size="1">Call-ID: ei4dEgWhzV</font></div><div><font size="1">Max-Forwards: 70</font></div><div><font size="1">Supported: replaces, outbound</font></div><div><font size="1">Contact: <<a href="mailto:sip%3A10185@106.201.89.50">sip:10185@106.201.89.50</a>>;+sip.instance="<urn:uuid:61dd7345-d790-4146-8a00-7df4478193e6>"</font></div><div><font size="1">Expires: 3600</font></div><div><font size="1">User-Agent: LinphoneAndroid/3 (belle-sip/1.3.2)</font></div><div><font size="1">Authorization: Digest realm="188.227.178.226", nonce="555b7343000137493797b541c03d370fd95d1c5f1b634449", username="10185", uri="sip:188.227.178.226", response="1e9f404568b1fbded560fafc8714db31"</font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1">Proxy ------> SIP Server</font></div><div><font size="1">------------------------</font></div><div><font size="1"><br></font></div><div><font size="1">REGISTER sip:188.227.178.226 SIP/2.0</font></div><div><font size="1">Via: SIP/2.0/UDP 104.222.98.124:7878;branch=z9hG4bKdf92.7d24b9515de3bb87a736bb7e40cd1923.0</font></div><div><font size="1">Via: SIP/2.0/UDP 106.201.89.50:5060;received=106.201.89.50;branch=z9hG4bK.TZ8-sBaxi;rport=5060</font></div><div><font size="1">From: <<a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a>>;tag=bL0ESqY70</font></div><div><font size="1">To: <a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a></font></div><div><font size="1">CSeq: 25 REGISTER</font></div><div><font size="1">Call-ID: ei4dEgWhzV</font></div><div><font size="1">Max-Forwards: 69</font></div><div><font size="1">Supported: replaces, outbound</font></div><div><font size="1">Contact: <<a href="mailto:sip%3A10185@106.201.89.50">sip:10185@106.201.89.50</a>>;+sip.instance="<urn:uuid:61dd7345-d790-4146-8a00-7df4478193e6>"</font></div><div><font size="1">Expires: 3600</font></div><div><font size="1">User-Agent: LinphoneAndroid/3 (belle-sip/1.3.2)</font></div><div><font size="1">Authorization: Digest realm="188.227.178.226", nonce="555b7343000137493797b541c03d370fd95d1c5f1b634449", username="10185", uri="sip:188.227.178.226", response="1e9f404568b1fbded560fafc8714db31"</font></div><div><font size="1">P-hint: outbound</font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1">SIP Server ------> Proxy</font></div><div><font size="1">------------------------</font></div><div><font size="1"><br></font></div><div><font size="1">SIP/2.0 200 OK</font></div><div><font size="1">Via: SIP/2.0/UDP 104.222.98.124:7878;received=104.222.98.124;rport=7878;branch=z9hG4bKaf92.109b3a2c233dcc8d0a0adafe734e77d5.0</font></div><div><font size="1">Via: SIP/2.0/UDP 106.201.89.50:5060;received=106.201.89.50;branch=z9hG4bK.u6mLnvNhh;rport=5060</font></div><div><font size="1">From: <<a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a>>;tag=bL0ESqY70</font></div><div><font size="1">To: <a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a>;tag=66565ae6872f3b1972fa74c2273140bf.caca</font></div><div><font size="1">CSeq: 26 REGISTER</font></div><div><font size="1">Call-ID: ei4dEgWhzV</font></div><div><font size="1">Contact: <<a href="mailto:sip%3A10185@106.201.89.50">sip:10185@106.201.89.50</a>>;expires=120</font></div><div><font size="1">Server: OpenSIPS (1.8.3-notls (x86_64/linux))</font></div><div><font size="1">Content-Length: 0</font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1">Proxy ------> UAC</font></div><div><font size="1">-----------------</font></div><div><font size="1"><br></font></div><div><font size="1">SIP/2.0 200 OK</font></div><div><font size="1">Via: SIP/2.0/UDP 106.201.89.50:5060;received=106.201.89.50;branch=z9hG4bK.u6mLnvNhh;rport=5060</font></div><div><font size="1">From: <<a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a>>;tag=bL0ESqY70</font></div><div><font size="1">To: <a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a>;tag=66565ae6872f3b1972fa74c2273140bf.caca</font></div><div><font size="1">CSeq: 26 REGISTER</font></div><div><font size="1">Call-ID: ei4dEgWhzV</font></div><div><font size="1">Contact: <<a href="mailto:sip%3A10185@106.201.89.50">sip:10185@106.201.89.50</a>>;expires=120</font></div><div><font size="1">Server: OpenSIPS (1.8.3-notls (x86_64/linux))</font></div><div><font size="1">Content-Length: 0</font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1">Calling from UAa (wifi) to UAb (3G)</font></div><div><font size="1">***********************************</font></div><div><font size="1"><br></font></div><div><font size="1">UAa ------> Proxy</font></div><div><font size="1">-----------------</font></div><div><font size="1"><br></font></div><div><font size="1">INVITE <a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a> SIP/2.0</font></div><div><font size="1">Via: SIP/2.0/UDP 59.178.140.180:5060;branch=z9hG4bK.dii5ugxwb;rport</font></div><div><font size="1">From: <<a href="mailto:sip%3A181085@188.227.178.226">sip:181085@188.227.178.226</a>>;tag=sjR6XkprZ</font></div><div><font size="1">To: <a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a></font></div><div><font size="1">CSeq: 20 INVITE</font></div><div><font size="1">Call-ID: 5kP-E1uHL1</font></div><div><font size="1">Max-Forwards: 70</font></div><div><font size="1">Route: <sip:104.222.98.124:7878;lr></font></div><div><font size="1">Supported: replaces, outbound</font></div><div><font size="1">Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO, UPDATE</font></div><div><font size="1">Content-Type: application/sdp</font></div><div><font size="1">Content-Length: 421</font></div><div><font size="1">Contact: <<a href="mailto:sip%3A181085@59.178.140.180">sip:181085@59.178.140.180</a>>;+sip.instance="<urn:uuid:b368e9b2-d156-4377-8e5e-b1b6f293de45>"</font></div><div><font size="1">User-Agent: LinphoneAndroid/3 (belle-sip/1.3.2)</font></div><div><font size="1"><br></font></div><div><font size="1">v=0</font></div><div><font size="1">o=181085 2051 698 IN IP4 59.178.140.180</font></div><div><font size="1">s=Talk</font></div><div><font size="1">c=IN IP4 59.178.140.180</font></div><div><font size="1">b=AS:380</font></div><div><font size="1">t=0 0</font></div><div><font size="1">m=audio 11695 RTP/AVP 124 120 111 110 0 8 101</font></div><div><font size="1">a=rtpmap:124 opus/48000/2</font></div><div><font size="1">a=fmtp:124 useinbandfec=1; stereo=0; sprop-stereo=0</font></div><div><font size="1">a=rtpmap:120 SILK/16000</font></div><div><font size="1">a=rtpmap:111 speex/16000</font></div><div><font size="1">a=fmtp:111 vbr=on</font></div><div><font size="1">a=rtpmap:110 speex/8000</font></div><div><font size="1">a=fmtp:110 vbr=on</font></div><div><font size="1">a=rtpmap:101 telephone-event/8000</font></div><div><font size="1">a=fmtp:101 0-15</font></div><div><font size="1">a=rtcp:7077 IN IP4 192.168.1.2</font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1">Proxy ------> SIP Server</font></div><div><font size="1">------------------------</font></div><div><font size="1"><br></font></div><div><font size="1">INVITE <a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a> SIP/2.0</font></div><div><font size="1">Record-Route: <sip:104.222.98.124:7878;lr=on;nat=yes></font></div><div><font size="1">Via: SIP/2.0/UDP 104.222.98.124:7878;branch=z9hG4bKae74.d03682b95a7f012aaa8cc9e9bc9b14f5.0</font></div><div><font size="1">Via: SIP/2.0/UDP 59.178.140.180:5060;received=59.178.140.180;branch=z9hG4bK.dii5ugxwb;rport=5060</font></div><div><font size="1">From: <<a href="mailto:sip%3A181085@188.227.178.226">sip:181085@188.227.178.226</a>>;tag=sjR6XkprZ</font></div><div><font size="1">To: <a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a></font></div><div><font size="1">CSeq: 20 INVITE</font></div><div><font size="1">Call-ID: 5kP-E1uHL1</font></div><div><font size="1">Max-Forwards: 69</font></div><div><font size="1">Supported: replaces, outbound</font></div><div><font size="1">Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO, UPDATE</font></div><div><font size="1">Content-Type: application/sdp</font></div><div><font size="1">Content-Length: 421</font></div><div><font size="1">Contact: <<a href="mailto:sip%3A181085@59.178.140.180">sip:181085@59.178.140.180</a>>;+sip.instance="<urn:uuid:b368e9b2-d156-4377-8e5e-b1b6f293de45>"</font></div><div><font size="1">User-Agent: LinphoneAndroid/3 (belle-sip/1.3.2)</font></div><div><font size="1">Path: <sip:104.222.98.124:7878;lr;received=sip:<a href="http://59.178.140.180:5060">59.178.140.180:5060</a>></font></div><div><font size="1">P-hint: outbound</font></div><div><font size="1"><br></font></div><div><font size="1">v=0</font></div><div><font size="1">o=181085 2051 698 IN IP4 104.222.98.124</font></div><div><font size="1">s=Talk</font></div><div><font size="1">c=IN IP4 104.222.98.124</font></div><div><font size="1">b=AS:380</font></div><div><font size="1">t=0 0</font></div><div><font size="1">m=audio 19880 RTP/AVP 124 120 111 110 0 8 101</font></div><div><font size="1">a=rtpmap:124 opus/48000/2</font></div><div><font size="1">a=fmtp:124 useinbandfec=1; stereo=0; sprop-stereo=0</font></div><div><font size="1">a=rtpmap:120 SILK/16000</font></div><div><font size="1">a=rtpmap:111 speex/16000</font></div><div><font size="1">a=fmtp:111 vbr=on</font></div><div><font size="1">a=rtpmap:110 speex/8000</font></div><div><font size="1">a=fmtp:110 vbr=on</font></div><div><font size="1">a=rtpmap:101 telephone-event/8000</font></div><div><font size="1">a=fmtp:101 0-15</font></div><div><font size="1">a=rtcp:19881</font></div><div><font size="1">a=nortpproxy:yes</font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1">SIP Server ------> Proxy</font></div><div><font size="1">------------------------</font></div><div><font size="1"><br></font></div><div><font size="1">SIP/2.0 100 Giving a try</font></div><div><font size="1">Via: SIP/2.0/UDP 104.222.98.124:7878;received=104.222.98.124;rport=7878;branch=z9hG4bKbe74.a7aaf30744452fb8d6e4a007c5454b22.0</font></div><div><font size="1">Via: SIP/2.0/UDP 59.178.140.180:5060;received=59.178.140.180;branch=z9hG4bK.xKUkXp0dg;rport=5060</font></div><div><font size="1">From: <<a href="mailto:sip%3A181085@188.227.178.226">sip:181085@188.227.178.226</a>>;tag=sjR6XkprZ</font></div><div><font size="1">To: <a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a></font></div><div><font size="1">CSeq: 21 INVITE</font></div><div><font size="1">Call-ID: 5kP-E1uHL1</font></div><div><font size="1">Server: OpenSIPS (1.8.3-notls (x86_64/linux))</font></div><div><font size="1">Content-Length: 0</font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1">SIP Server ------> UAb</font></div><div><font size="1">----------------------</font></div><div><font size="1"><br></font></div><div><font size="1">INVITE <a href="mailto:sip%3A10185@106.201.89.50">sip:10185@106.201.89.50</a> SIP/2.0</font></div><div><font size="1">Record-Route: <sip:188.227.178.226;lr;did=b63.3b918bd2></font></div><div><font size="1">Record-Route: <sip:104.222.98.124:7878;lr=on;nat=yes></font></div><div><font size="1">Via: SIP/2.0/UDP 188.227.178.226:5060;branch=z9hG4bKbe74.e083e367.0</font></div><div><font size="1">Via: SIP/2.0/UDP 104.222.98.124:7878;rport=7878;received=104.222.98.124;branch=z9hG4bKbe74.a7aaf30744452fb8d6e4a007c5454b22.0</font></div><div><font size="1">Via: SIP/2.0/UDP 59.178.140.180:5060;received=59.178.140.180;branch=z9hG4bK.xKUkXp0dg;rport=5060</font></div><div><font size="1">From: <<a href="mailto:sip%3A181085@188.227.178.226">sip:181085@188.227.178.226</a>>;tag=sjR6XkprZ</font></div><div><font size="1">To: <a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a></font></div><div><font size="1">CSeq: 21 INVITE</font></div><div><font size="1">Call-ID: 5kP-E1uHL1</font></div><div><font size="1">Max-Forwards: 68</font></div><div><font size="1">Supported: replaces, outbound</font></div><div><font size="1">Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO, UPDATE</font></div><div><font size="1">Content-Type: application/sdp</font></div><div><font size="1">Content-Length: 421</font></div><div><font size="1">Contact: <<a href="mailto:sip%3A181085@59.178.140.180">sip:181085@59.178.140.180</a>>;+sip.instance="<urn:uuid:b368e9b2-d156-4377-8e5e-b1b6f293de45>"</font></div><div><font size="1">User-Agent: LinphoneAndroid/3 (belle-sip/1.3.2)</font></div><div><font size="1">Path: <sip:104.222.98.124:7878;lr;received=sip:<a href="http://59.178.140.180:5060">59.178.140.180:5060</a>></font></div><div><font size="1">P-hint: outbound</font></div><div><font size="1"><br></font></div><div><font size="1">v=0</font></div><div><font size="1">o=181085 2051 698 IN IP4 104.222.98.124</font></div><div><font size="1">s=Talk</font></div><div><font size="1">c=IN IP4 104.222.98.124</font></div><div><font size="1">b=AS:380</font></div><div><font size="1">t=0 0</font></div><div><font size="1">m=audio 10326 RTP/AVP 124 120 111 110 0 8 101</font></div><div><font size="1">a=rtpmap:124 opus/48000/2</font></div><div><font size="1">a=fmtp:124 useinbandfec=1; stereo=0; sprop-stereo=0</font></div><div><font size="1">a=rtpmap:120 SILK/16000</font></div><div><font size="1">a=rtpmap:111 speex/16000</font></div><div><font size="1">a=fmtp:111 vbr=on</font></div><div><font size="1">a=rtpmap:110 speex/8000</font></div><div><font size="1">a=fmtp:110 vbr=on</font></div><div><font size="1">a=rtpmap:101 telephone-event/8000</font></div><div><font size="1">a=fmtp:101 0-15</font></div><div><font size="1">a=rtcp:10327</font></div><div><font size="1">a=nortpproxy:yes</font></div><div><font size="1"><br></font></div><div><font size="1"><br></font></div><div><font size="1">Finally,</font></div><div><font size="1"><br></font></div><div><font size="1">SIP Server ------> Proxy</font></div><div><font size="1">------------------------</font></div><div><font size="1"><br></font></div><div><font size="1">SIP/2.0 408 Request Timeout</font></div><div><font size="1">Via: SIP/2.0/UDP 104.222.98.124:7878;received=104.222.98.124;rport=7878;branch=z9hG4bKbe74.a7aaf30744452fb8d6e4a007c5454b22.0</font></div><div><font size="1">Via: SIP/2.0/UDP 59.178.140.180:5060;received=59.178.140.180;branch=z9hG4bK.xKUkXp0dg;rport=5060</font></div><div><font size="1">From: <<a href="mailto:sip%3A181085@188.227.178.226">sip:181085@188.227.178.226</a>>;tag=sjR6XkprZ</font></div><div><font size="1">To: <a href="mailto:sip%3A10185@188.227.178.226">sip:10185@188.227.178.226</a>;tag=9da0519e96ad88f8de3fd8d2c9042128-3485</font></div><div><font size="1">CSeq: 21 INVITE</font></div><div><font size="1">Call-ID: 5kP-E1uHL1</font></div><div><font size="1">Server: OpenSIPS (1.8.3-notls (x86_64/linux))</font></div><div><font size="1">Content-Length: 0</font></div><div><br></div></div><div><br></div><div>Kindly guide me to resolve this part, I am attaching the kamailio.cfg file herewith.</div><div><br></div><div><br></div><div>Thanks</div><div><br></div><div>Rahul</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, May 8, 2015 at 12:54 PM, Daniel-Constantin Mierla <span dir="ltr"><<a href="mailto:miconda@gmail.com" target="_blank">miconda@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
Hello,<br>
<br>
you can force rtp relaying always, if it is what you want -- just
call rtpproxy_manage() for all INVITE requests and their replies.<br>
<br>
Otherwise you have to tune the nat_uac_test() parameter in order to
match what you want to relay.<br>
<br>
For signaling relaying, be sure you do record_route() for calls.<br>
<br>
Cheers,<br>
Daniel<div><div class="h5"><br>
<br>
<div>On 07/05/15 16:01, rahul.ultimate
wrote:<br>
</div>
<blockquote type="cite">
<div>Hi Daniel</div>
<div><br>
</div>
<div>I have rtpproxy to perform media relaying.</div>
<div><br>
</div>
<div>The case where it just timeouts: </div>
<div>1. Client A behind NAT (wifi) calling Client B on 3G</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>
<div style="font-size:75%;color:#575757">Sent from Samsung
Mobile</div>
</div>
<br>
<br>
-------- Original message --------<br>
From: Daniel-Constantin Mierla <u></u> <br>
Date:05/05/2015 12:52 (GMT+05:30) <br>
To: "Kamailio (SER) - Users Mailing List" <u></u>
<br>
Subject: Re: [SR-Users] Kamailio proxy for far-end nat
traversal <br>
<br>
Hello,<br>
<br>
do you have rtpproxy or rtpengine for relaying rtp packets?
Kamailio is routing only sip packets, you need the rtp relay
application to help with media streams.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div>On 01/05/15 13:15, rahul.ultimate
wrote:<br>
</div>
<blockquote type="cite">
<div>Hello</div>
<div><br>
</div>
<div>I need a small guidance on creating a light weight
proxy which only forwards the msgs to my sip server and
also does supports symmetrical nated clients.</div>
<div><br>
</div>
<div>The way I have created the configuration is a slight
modification of :</div>
<div><a href="https://github.com/xlab1/sipfe_kamailio/blob/master/kamailio.cfg" target="_blank">https://github.com/xlab1/sipfe_kamailio/blob/master/kamailio.cfg</a></div>
<div><br>
</div>
<div>Problem is unless the sip clients use STUN media
packets are not routed. And sometimes even the signalling
does not pass through.</div>
<div><br>
</div>
<div>Should i not use fix_nated_register and switch to fix _
nated_contact always ?</div>
<div><br>
</div>
<div>Because in all those cases where signalling does not
pass through, I see RTO. My best guess is kamailio trying
to communicate with private ip.</div>
<div><br>
</div>
<div>Anything which I can try that you could suggest from
the top of yourmind woyld be muc appreciated. </div>
<div><br>
</div>
<div><br>
</div>
<div>Thanks</div>
<div>Rahul</div>
<div><br>
</div>
<div><br>
</div>
<div>
<div style="font-size:75%;color:#575757">Sent from Samsung
Mobile</div>
</div>
<br>
<fieldset></fieldset>
<br>
<pre>_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
<a href="mailto:sr-users@lists.sip-router.org" target="_blank">sr-users@lists.sip-router.org</a>
<a href="http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users" target="_blank">http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users</a>
</pre>
</blockquote>
<br>
<pre cols="72">--
Daniel-Constantin Mierla
<a href="http://twitter.com/#%21/miconda" target="_blank">http://twitter.com/#!/miconda</a> - <a href="http://www.linkedin.com/in/miconda" target="_blank">http://www.linkedin.com/in/miconda</a>
Kamailio World Conference, May 27-29, 2015
Berlin, Germany - <a href="http://www.kamailioworld.com" target="_blank">http://www.kamailioworld.com</a></pre>
<u></u><u></u></blockquote>
<br>
<pre cols="72">--
Daniel-Constantin Mierla
<a href="http://twitter.com/#!/miconda" target="_blank">http://twitter.com/#!/miconda</a> - <a href="http://www.linkedin.com/in/miconda" target="_blank">http://www.linkedin.com/in/miconda</a>
Kamailio World Conference, May 27-29, 2015
Berlin, Germany - <a href="http://www.kamailioworld.com" target="_blank">http://www.kamailioworld.com</a></pre>
</div></div></div>
</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature">Warm Regds.<br>MathuRahul<br></div>
</div>