<div dir="ltr"><div><div><div>Hi FreeSWITCHers:<br><br></div>I configured a sip profile as bellow:<br><br>=================================================================================================<br>Name                    sipinterface_1<br>
Domain Name             N/A<br>Auto-NAT                false<br>DBName                  sofia_reg_sipinterface_1<br>Pres Hosts       <br>Dialplan                XML<br>Context                 context_1<br>Challenge Realm         auto_to<br>
RTP-IP                  192.168.10.59<br>Ext-RTP-IP              <span style="background-color:rgb(61,133,198)">X.Y.Z.W</span><br>SIP-IP                  192.168.10.59<br>Ext-SIP-IP               <span style="background-color:rgb(61,133,198)">X.Y.Z.W</span><br>
URL                     sip:mod_sofia@X.Y.Z.W:5060<br>BIND-URL                sip:mod_sofia@X.Y.Z.W:5060;maddr=192.168.10.59;transport=udp,tcp<br>HOLD-MUSIC              N/A<br>OUTBOUND-PROXY          N/A<br>CODECS IN               G722,PCMU,PCMA,GSM<br>
CODECS OUT              G722,PCMU,PCMA,GSM<br>TEL-EVENT               101<br>DTMF-MODE               rfc2833<br>CNG                     13<br>SESSION-TO              0<br>MAX-DIALOG              0<br>NOMEDIA                 false<br>
LATE-NEG                false<br>PROXY-MEDIA             false<br>ZRTP-PASSTHRU           false<br>AGGRESSIVENAT           true<br>CALLS-IN                0<br>FAILED-CALLS-IN         0<br>CALLS-OUT               0<br>FAILED-CALLS-OUT        0<br>
REGISTRATIONS           1<br><br></div>for every INVITE that comes in via this profile, FS replys with this SDP:<br>   <br>   v=0<br>   o=FreeSWITCH 1407905843 1407905844 IN IP4 <span style="background-color:rgb(255,0,0)">192.168.10.59</span><br>
   s=FreeSWITCH<br>   c=IN IP4 <span style="background-color:rgb(255,0,0)">192.168.10.59</span><br>   t=0 0<br>   m=audio 25142 RTP/AVP 0 101<br>   a=rtpmap:0 PCMU/8000<br>   a=rtpmap:101 telephone-event/8000<br>   a=fmtp:101 0-16<br>
   a=ptime:20<br><br></div>Although the Contact header of 200 OK is correct :<br>Contact: &lt;sip:4000@<span style="background-color:rgb(106,168,79)">X.Y.Z.W</span>:5060;transport=udp&gt;<br><div><br><br></div><div>Appreciate all comments,<br>
</div><div>-- Afshin<br></div></div>