<div dir="ltr">Hi Daniel<div><br></div><div>Here is 200 OK and ACK from Cisco gateway</div><div><br></div><div><div>x.x.x.x: SPCE</div><div>y.y.y.y: Cisco GW</div><div><br></div><div><br></div><div>Apr 14 05:54:00.713: Received: </div><div>SIP/2.0 200 OK</div><div>Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=708A9F50-17F;did=28c.89;ice_caller=strip;ice_callee=strip;aset=50;rtpprx=yes;vsf=aGFlclVnVW5YdmtjM3pIGi8IUntse2ZsGDkNVg--></div><div>Record-Route: <sip:127.0.0.1:6060;r2=on;lr=on;ftag=708A9F50-17F;nat=yes;ngcplb=yes;socket=udp:x.x.x.x:6060></div><div>Record-Route: <sip:x.x.x.x:6060;r2=on;lr=on;ftag=708A9F50-17F;nat=yes;ngcplb=yes;socket=udp:x.x.x.x:6060></div><div>Via: SIP/2.0/UDP y.y.y.y:5060;rport=51840;x-route-tag="tgrp:IN"</div><div>From: "WIRELESS CALLER" <sip:2818573448@y.y.y.y>;tag=708A9F50-17F</div><div>To: <sip:17133751530@x.x.x.x>;tag=473DB4A8-560465B3000A846D-B0579700</div><div>Call-ID: 5CD39559-2FD111D5-8F95AB03-128F69C7@y.y.y.y</div><div>CSeq: 101 INVITE</div><div>Supported: replaces, path, eventlist</div><div>User-Agent: Grandstream HT701 1.0.7.3</div><div>Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, SUBSCRIBE, NOTIFY, UPDATE</div><div>Content-Type: application/sdp</div><div>Content-Length: 307</div><div>Contact: <sip:ngcp-lb@x.x.x.x:6060;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31></div><div><br></div><div>v=0</div><div>o=000B827B5aaa 8000 8000 IN IP4 x.x.x.x</div><div>s=SIP Call</div><div>c=IN IP4 x.x.x.x</div><div>t=0 0</div><div>m=audio 32660 RTP/AVP 18 0 8 101</div><div>a=rtpmap:18 G729/8000</div><div>a=rtpmap:0 PCMU/8000</div><div>a=rtpmap:8 PCMA/8000</div><div>a=rtpmap:101 telephone-event/8000</div><div>a=fmtp:101 0-16,32-36,54</div><div>a=ptime:20</div><div>a=direction:active</div><div>a=sendrecv</div><div>a=rtcp:32661</div><div><br></div><div>*Apr 14 05:54:00.717: Sent: </div><div>ACK sip:x.x.x.x:6060;r2=on;lr=on;ftag=708A9F50-17F;nat=yes;ngcplb=yes;socket=udp:x.x.x.x:6060 SIP/2.0</div><div>Via: SIP/2.0/UDP y.y.y.y:5060;x-route-tag="tgrp:IN"</div><div>From: "WIRELESS CALLER" <sip:2818573448@y.y.y.y>;tag=708A9F50-17F</div><div>To: <sip:17133751530@x.x.x.x>;tag=473DB4A8-560465B3000A846D-B0579700</div><div>Date: Sat, 14 Apr 2001 05:53:52 GMT</div><div>Call-ID: 5CD39559-2FD111D5-8F95AB03-128F69C7@y.y.y.y</div><div>Route: <sip:127.0.0.1:6060;r2=on;lr=on;ftag=708A9F50-17F;nat=yes;ngcplb=yes;socket=udp:x.x.x.x:6060>,<sip:127.0.0.1:5062;lr=on;ftag=708A9F50-17F;did=28c.89;ice_caller=strip;ice_callee=strip;aset=50>, <sip:ngcp-lb@x.x.x.x:6060;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31></div><div>Max-Forwards: 6</div><div>Content-Length: 0</div><div>CSeq: 101 ACK</div></div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><div dir="ltr"><br><div>---</div><div>Best regards,</div><div><br></div><div><b>Tung Tran</b></div><div><br></div><div><div><font color="#0000ff"><b>V247 Enterprise Corp<br></b>713.358.2257 office | 281.857.3448 cell<br>9999 Bellaire Blvd., Ste. 1111<b> | </b>Houston, TX 77036<br></font></div><div><b><font color="#0000ff">tung.tran@V247.com | <a href="http://www.v247.com/" target="_blank">www.V247.com</a></font></b></div></div><div><br></div></div></div></div>
<br><div class="gmail_quote">On Thu, Sep 24, 2015 at 2:21 PM, Daniel Grotti <span dir="ltr"><<a href="mailto:dgrotti@sipwise.com" target="_blank">dgrotti@sipwise.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
How the ack message looks like?<br>
Can you paste here the ack from Cisco to SPCE ?<br>
<span class="HOEnZb"><font color="#888888"><br>
<br>
Daniel<br>
</font></span><span class="im HOEnZb"><br>
On Sep 24, 2015 8:36 PM, Tung Tran <<a href="mailto:tung.tran@v247.com">tung.tran@v247.com</a>> wrote:<br>
><br>
> Dear all<br>
><br>
> I have this scenario:<br>
> Caller from PSTN (via Cisco gateway 5400) dialed DID number which was assigned to an ATA ( grand stream HT701). Call was hit SPCE just fine and connected but no audio from both sides, and call was disconnect after 30 seconds<br>
> I ran wireshark on SPCE and saw SPCE didnt forward ACK message from Cisco gateway to client (HT701), so I guest HT701 was waiting for ACK before starting RTP session, and it dropped call after timeout<br>
><br>
> Please see the call flow for detail <br>
><br>
><br>
><br>
</span><div class="HOEnZb"><div class="h5">> Anyone got that issue before please share how to fix it?<br>
><br>
><br>
> ---<br>
> Best regards,<br>
><br>
> Tung Tran<br>
><br>
> V247 Enterprise Corp<br>
> <a href="tel:713.358.2257" value="+17133582257">713.358.2257</a> office | <a href="tel:281.857.3448" value="+12818573448">281.857.3448</a> cell<br>
> 9999 Bellaire Blvd., Ste. 1111 | Houston, TX 77036<br>
> tung.tran@V247.com | <a href="http://www.V247.com" rel="noreferrer" target="_blank">www.V247.com</a><br>
><br>
</div></div></blockquote></div><br></div>