I have a problem with a provider where the call are dropped by Freeswitch after receiving a 183 + SDP.<div>I think that the problem is in SDP but I don&#39;t know where.</div><div>The SDP that Freeswitch sends in INVITE is:</div>
<div><br></div><div><div>   v=0</div><div>   o=FreeSWITCH 1324273767 1324273768 IN IP4 62.196.58.2</div><div>   s=FreeSWITCH</div><div>   c=IN IP4 62.196.58.2</div><div>   t=0 0</div><div>   m=audio 52062 RTP/AVP 18 101 13</div>
<div>   a=rtpmap:101 telephone-event/8000</div><div>   a=fmtp:101 0-16</div><div>   a=ptime:20</div></div><div><br></div><div><br></div><div>where the SDP that Freeswitch receives from the provider is:</div><div><br></div>
<div><div>   v=0</div><div>   o=sansay-VSX 10 10 IN IP4 206.172.44.229</div><div>   s=session controller</div><div>   c=IN IP4 206.172.44.229</div><div>   t=0 0</div><div>   m=audio 28364 RTP/AVP 18 150</div><div>   a=rtpmap:18 G729/8000</div>
<div>   a=fmtp:18 annexb=no</div><div>   a=rtpmap:150 telephone-event/8000</div><div>   a=fmtp:150 0-15</div><div>   a=ptime:20</div></div><div><br></div><div><br></div><div>After this SDP I see in the log:</div><div><br>
</div><div>2011-12-19 21:17:11.567017 [DEBUG] switch_ivr_originate.c:3364 Originate Resulted in Error Cause: 100 [INVALID_IE_CONTENTS]</div><div><br></div><div>Can anyone give me an advice to solve this issue?</div><div><br>
</div><div>Stephen</div>