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Hi,<BR>
&nbsp;<BR>
My kamailio and application server are with Public IPs so the system&nbsp;uses nathelper without RTPProxy.&nbsp; It works with the eyebeam behind the ADSL router, but I cannot hear any&nbsp;voice ( ethereal capture on the PC shows no RTP from the application server) when try it in a Hotel or with a 3G data card. Below is the SIP messages for the issue, is there anyway can fix the issuse?&nbsp;&nbsp;<BR>
============Start===========================<BR>
UAC&nbsp; ----&gt; NAT/Firewall(FW)<BR>
&nbsp;<BR>
INVITE sip:0216666@210.x.y.15 SIP/2.0<BR>Via: SIP/2.0/UDP 172.16.114.1:51828;branch=z9hG4bK-d8754z-3870be05b936bf38-1---d8754z-;rport<BR>Max-Forwards: 70<BR>Contact: &lt;sip:2001@172.16.114.1:12461&gt;<BR>To: "videoConf"&lt;sip:0216666@210.x.y.15&gt;<BR>From: "2001"&lt;sip:2001@210.x.y.15&gt;;tag=db06e72d<BR>Call-ID: NzYwMzhjOTc5NWJlY2Q5YzFiN2JlZGNjNDlkNzMyNmU.<BR>&nbsp;CSeq: 1 INVITE<BR>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO<BR>Content-Type: application/sdp<BR>User-Agent: eyeBeam release 1102q stamp 51814<BR>Content-Length: 230<BR>
v=0<BR>o=- 7 2 IN IP4 172.16.114.1<BR>s=CounterPath eyeBeam 1.5<BR>c=IN IP4 172.16.114.1<BR>t=0 0<BR>m=audio 27384 RTP/AVP 18 101<BR>a=fmtp:18 annexb=yes<BR>a=fmtp:101 0-15<BR>a=rtpmap:18 G729/8000<BR>a=rtpmap:101 telephone-event/8000<BR>a=sendrecv<BR>
<BR>NAT/FW ---&gt; Kamailio(KAM)<BR>INVITE sip:0216666@210.x.y.15 SIP/2.0<BR>Via: SIP/2.0/UDP 113.108.Z.1:13945;branch=z9hG4bK-d8754z-3870be05b936bf38-1---d8754z-;rport<BR>Call-ID: NzYwMzhjOTc5NWJlY2Q5YzFiN2JlZGNjNDlkNzMyNmU.<BR>From: "2001"&lt;sip:2001@113.108.Z.1:12302&gt;;tag=db06e72d<BR>To: "videoConf"&lt;sip:0216666@210.x.y.15&gt;<BR>CSeq: 1 INVITE<BR>Max-Forwards: 70<BR>Contact: &lt;sip:2001@113.108.Z.1:13202&gt;<BR>Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,NOTIFY,MESSAGE,SUBSCRIBE,INFO<BR>User-Agent: eyeBeam release 1102q stamp 51814<BR>Content-Length: 230<BR>Content-Type: application/sdp<BR>
v=0<BR>o=- 7 2 IN IP4 172.16.114.1<BR>s=CounterPath eyeBeam 1.5<BR>c=IN IP4 113.108.Z.1<BR>t=0 0<BR>m=audio 14794 RTP/AVP 18 101<BR>a=fmtp:18 annexb=yes<BR>a=fmtp:101 0-15<BR>a=rtpmap:18 G729/8000<BR>a=rtpmap:101 telephone-event/8000<BR>a=sendrecv<BR><BR>
NAT/FW ---&gt; Kamailio(KAM)<BR>INVITE sip:0216666@210.x.y.15 SIP/2.0<BR>Via: SIP/2.0/UDP 113.108.Z.1:13945;branch=z9hG4bK-d8754z-3870be05b936bf38-1---d8754z-;rport<BR>Call-ID: NzYwMzhjOTc5NWJlY2Q5YzFiN2JlZGNjNDlkNzMyNmU.<BR>From: "2001"&lt;sip:2001@113.108.Z.1:12302&gt;;tag=db06e72d<BR>To: "videoConf"&lt;sip:0216666@210.x.y.15&gt;<BR>CSeq: 1 INVITE<BR>Max-Forwards: 70<BR>Contact: &lt;sip:2001@113.108.Z.1:13202&gt;<BR>Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,NOTIFY,MESSAGE,SUBSCRIBE,INFO<BR>User-Agent: eyeBeam release 1102q stamp 51814<BR>Content-Length: 230<BR>Content-Type: application/sdp<BR>
v=0<BR>o=- 7 2 IN IP4 172.16.114.1<BR>s=CounterPath eyeBeam 1.5<BR>c=IN IP4 113.108.Z.1<BR>t=0 0<BR>m=audio 14794 RTP/AVP 18 101<BR>a=fmtp:18 annexb=yes<BR>a=fmtp:101 0-15<BR>a=rtpmap:18 G729/8000<BR>a=rtpmap:101 telephone-event/8000<BR>a=sendrecv<BR>
<BR>SIP/2.0 100 trying -- your call is important to us<BR>Via: SIP/2.0/UDP 172.16.114.1:51828;branch=z9hG4bK-d8754z-3870be05b936bf38-1---d8754z-;rport=12461<BR>Call-ID: NzYwMzhjOTc5NWJlY2Q5YzFiN2JlZGNjNDlkNzMyNmU.<BR>From: "2001"&lt;sip:2001@210.x.y.15:5060&gt;;tag=db06e72d<BR>To: "videoConf"&lt;sip:0216666@210.x.y.15&gt;<BR>CSeq: 1 INVITE<BR>Server: kamailio (3.0.2 (sparc64/solaris))<BR>Content-Length: 0<BR>
KAM ---&gt; AS<BR>
INVITE sip:0216666@210.x.y.3:5060 SIP/2.0<BR>Record-Route: &lt;sip:210.x.y.15;lr=on;nat=yes&gt;<BR>Via: SIP/2.0/UDP 210.x.y.15;branch=z9hG4bK316e.08d5.0<BR>Via: SIP/2.0/UDP 113.108.Z.1:13945;branch=z9hG4bK-d8754z-3870be05b936bf38-1---d8754z-;rport=12461<BR>Call-ID: NzYwMzhjOTc5NWJlY2Q5YzFiN2JlZGNjNDlkNzMyNmU.<BR>From: "2001"&lt;sip:2001@113.108.Z.1:12302&gt;;tag=db06e72d<BR>To: "videoConf"&lt;sip:0216666@210.x.y.15&gt;<BR>CSeq: 1 INVITE<BR>Max-Forwards: 69<BR>Contact: &lt;sip:2001@113.108.Z.1:12461&gt;<BR>Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,REFER,NOTIFY,MESSAGE,SUBSCRIBE,INFO<BR>User-Agent: eyeBeam release 1102q stamp 51814<BR>Content-Length: 257<BR>Content-Type: application/sdp<BR>
v=0<BR>o=- 7 2 IN IP4 113.108.Z.1<BR>s=CounterPath eyeBeam 1.5<BR>c=IN IP4 113.108.Z.1<BR>t=0 0<BR>m=audio 14794 RTP/AVP 18 101<BR>a=fmtp:18 annexb=yes<BR>a=fmtp:101 0-15<BR>a=rtpmap:18 G729/8000<BR>a=rtpmap:101 telephone-event/8000<BR>a=sendrecv<BR>a=oldmediaip:172.16.114.1<BR>
<BR>KAM ---&gt; NAT/FW <BR>
SIP/2.0 180 Ringing<BR>Via: SIP/2.0/UDP 172.16.114.1:51828;branch=z9hG4bK-d8754z-3870be05b936bf38-1---d8754z-;rport=12461<BR>Record-Route: &lt;sip:210.x.y.15;lr;nat=yes&gt;<BR>Call-ID: NzYwMzhjOTc5NWJlY2Q5YzFiN2JlZGNjNDlkNzMyNmU.<BR>From: "2001"&lt;sip:2001@210.x.y.15:5060&gt;;tag=db06e72d<BR>To: "videoConf"&lt;sip:0216666@210.x.y.15&gt;;tag=a72e08e3-09d3-4cd2-a0d2-d33113440310<BR>CSeq: 1 INVITE<BR>Allow: INVITE,ACK,BYE,CANCEL,PRACK,NOTIFY,INFO,OPTIONS,UPDATE<BR>Supported: 100rel,timer,precondition<BR>Contact: &lt;sip:0216666@210.x.y.3:5060;transport=udp&gt;<BR>Content-Length: 0<BR>
AS ---&gt; KAM<BR>&nbsp;&nbsp; <BR>SIP/2.0 200 Ok<BR>Via: SIP/2.0/UDP 210.x.y.15;branch=z9hG4bK316e.08d5.0<BR>Via: SIP/2.0/UDP 113.108.Z.1:13945;branch=z9hG4bK-d8754z-3870be05b936bf38-1---d8754z-;rport=12461<BR>Record-Route: &lt;sip:210.x.y.15;lr=on;nat=yes&gt;<BR>To: "videoConf" &lt;sip:0216666@210.x.y.15&gt;;tag=a72e08e3-09d3-4cd2-a0d2-d33113440310<BR>From: "2001" &lt;sip:2001@113.108.Z.1:12302&gt;;tag=db06e72d<BR>Call-ID: NzYwMzhjOTc5NWJlY2Q5YzFiN2JlZGNjNDlkNzMyNmU.<BR>CSeq: 1 INVITE<BR>Content-Length: 222<BR>Content-Type: application/sdp<BR>Session-Expires: 1800;refresher=uas<BR>Require: timer<BR>Allow: INVITE,ACK,BYE,CANCEL,PRACK,NOTIFY,INFO,OPTIONS,UPDATE<BR>Supported: 100rel, timer,precondition<BR>Contact: &lt;sip:0216666@210.x.y.3:5060;transport=udp&gt;<BR>
v=0<BR>o=- 15638 1276800468 IN IP4 210.x.y.8<BR>s=-<BR>c=IN IP4 210.x.y.11<BR>t=0 0<BR>m=audio 30654 RTP/AVP 18 101<BR>a=fmtp:18 annexb=yes<BR>a=fmtp:101 0-15<BR>a=ptime:20<BR>a=rtpmap:18 G729/8000<BR>a=rtpmap:101 telephone-event/8000<BR>
&nbsp;<BR>
KAM -----&gt; NAT/FW<BR>
SIP/2.0 200 Ok<BR>Via: SIP/2.0/UDP 113.108.Z.1:13945;branch=z9hG4bK-d8754z-3870be05b936bf38-1---d8754z-;rport=12461<BR>Record-Route: &lt;sip:210.x.y.15;lr=on;nat=yes&gt;<BR>To: "videoConf" &lt;sip:0216666@210.x.y.15&gt;;tag=a72e08e3-09d3-4cd2-a0d2-d33113440310<BR>From: "2001" &lt;sip:2001@113.108.Z.1:12302&gt;;tag=db06e72d<BR>Call-ID: NzYwMzhjOTc5NWJlY2Q5YzFiN2JlZGNjNDlkNzMyNmU.<BR>CSeq: 1 INVITE<BR>Content-Length: 222<BR>Content-Type: application/sdp<BR>Session-Expires: 1800;refresher=uas<BR>Require: timer<BR>Allow: INVITE,ACK,BYE,CANCEL,PRACK,NOTIFY,INFO,OPTIONS,UPDATE<BR>Supported: 100rel, timer,precondition<BR>Contact: &lt;sip:0216666@210.x.y.3:5060;transport=udp&gt;<BR>
v=0<BR>o=- 15638 1276800468 IN IP4 210.x.y.8<BR>s=-<BR>c=IN IP4 210.x.y.11<BR>t=0 0<BR>m=audio 30654 RTP/AVP 18 101<BR>a=fmtp:18 annexb=yes<BR>a=fmtp:101 0-15<BR>a=ptime:20<BR>a=rtpmap:18 G729/8000<BR>a=rtpmap:101 telephone-event/8000<BR>
&nbsp;<BR>
NAT/FW ----&gt; UAC<BR>
SIP/2.0 200 Ok<BR>Via: SIP/2.0/UDP 172.16.114.1:51828;branch=z9hG4bK-d8754z-3870be05b936bf38-1---d8754z-;rport=12461<BR>Record-Route: &lt;sip:210.x.y.15;lr;nat=yes&gt;<BR>Call-ID: NzYwMzhjOTc5NWJlY2Q5YzFiN2JlZGNjNDlkNzMyNmU.<BR>From: "2001"&lt;sip:2001@210.x.y.15:5060&gt;;tag=db06e72d<BR>To: "videoConf"&lt;sip:0216666@210.x.y.15&gt;;tag=a72e08e3-09d3-4cd2-a0d2-d33113440310<BR>CSeq: 1 INVITE<BR>Session-Expires: 1800;refresher=uas<BR>Require: timer<BR>Allow: INVITE,ACK,BYE,CANCEL,PRACK,NOTIFY,INFO,OPTIONS,UPDATE<BR>Supported: 100rel,timer,precondition<BR>Contact: &lt;sip:0216666@210.x.y.3:5060;transport=udp&gt;<BR>Content-Length: 222<BR>Content-Type: application/sdp<BR>
v=0<BR>o=- 15638 1276800468 IN IP4 210.x.y.8<BR>s=-<BR>c=IN IP4 210.x.y.11<BR>t=0 0<BR>m=audio 30654 RTP/AVP 18 101<BR>a=fmtp:18 annexb=yes<BR>a=fmtp:101 0-15<BR>a=ptime:20<BR>a=rtpmap:18 G729/8000<BR>a=rtpmap:101 telephone-event/8000<BR>
<BR>UAC ---&gt; NAT/FW<BR>
ACK sip:0216666@210.x.y.3:5060;transport=udp SIP/2.0<BR>Via: SIP/2.0/UDP 172.16.114.1:51828;branch=z9hG4bK-d8754z-ff50226f4e20b91c-1---d8754z-;rport<BR>Max-Forwards: 70<BR>Route: &lt;sip:210.x.y.15;lr;nat=yes&gt;<BR>Contact: &lt;sip:2001@172.16.114.1:12461&gt;<BR>To: "videoConf"&lt;sip:0216666@210.x.y.15&gt;;tag=a72e08e3-09d3-4cd2-a0d2-d33113440310<BR>From: "2001"&lt;sip:2001@210.x.y.15:5060&gt;;tag=db06e72d<BR>Call-ID: NzYwMzhjOTc5NWJlY2Q5YzFiN2JlZGNjNDlkNzMyNmU.<BR>CSeq: 1 ACK<BR>User-Agent: eyeBeam release 1102q stamp 51814<BR>Content-Length: 0<BR>
&nbsp;<BR>
NAT/FW ----&gt;&nbsp; KAM <BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <BR>ACK sip:0216666@210.x.y.3:5060;transport=udp SIP/2.0<BR>Via: SIP/2.0/UDP 113.108.Z.1:13945;branch=z9hG4bK-d8754z-ff50226f4e20b91c-1---d8754z-;rport<BR>Route: &lt;sip:210.x.y.15;lr;nat=yes&gt;<BR>Call-ID: NzYwMzhjOTc5NWJlY2Q5YzFiN2JlZGNjNDlkNzMyNmU.<BR>From: "2001"&lt;sip:2001@113.108.Z.1:12302&gt;;tag=db06e72d<BR>To: "videoConf"&lt;sip:0216666@210.x.y.15&gt;;tag=a72e08e3-09d3-4cd2-a0d2-d33113440310<BR>CSeq: 1 ACK<BR>Max-Forwards: 70<BR>Contact: &lt;sip:2001@113.108.Z.1:13202&gt;<BR>User-Agent: eyeBeam release 1102q stamp 51814<BR>Content-Length: 0<BR>
&nbsp;<BR>
KAM ----&gt;&nbsp; AS <BR>&nbsp;&nbsp; <BR>ACK sip:0216666@210.x.y.3:5060;transport=udp SIP/2.0<BR>Via: SIP/2.0/UDP 210.x.y.15;branch=0<BR>Via: SIP/2.0/UDP 113.108.Z.1:13945;branch=z9hG4bK-d8754z-ff50226f4e20b91c-1---d8754z-;rport=12461<BR>Call-ID: NzYwMzhjOTc5NWJlY2Q5YzFiN2JlZGNjNDlkNzMyNmU.<BR>From: "2001"&lt;sip:2001@113.108.Z.1:12302&gt;;tag=db06e72d<BR>To: "videoConf"&lt;sip:0216666@210.x.y.15&gt;;tag=a72e08e3-09d3-4cd2-a0d2-d33113440310<BR>CSeq: 1 ACK<BR>Max-Forwards: 69<BR>Contact: &lt;sip:2001@113.108.Z.1:12461&gt;<BR>User-Agent: eyeBeam release 1102q stamp 51814<BR>Content-Length: 0<BR>
==============End================<BR>
&nbsp;<BR>
&nbsp;<BR>
Thanks,<BR>
Kevin<BR><BR>                                               <br /><hr />搜索本应是彩色的,快来体验新一代搜索引擎-必应,精美图片每天换哦! <a href='http://cn.bing.com/?form=CRMADS ' target='_new'>立即试用!</a></body>
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