Hi all,

we have FREESWITCH behind opensips and freeswitch is running in AWS. Both Opensips and Freeswitch is in same network + Softphone SDP have public IP address. 

SOFTPHONE --> OPENSIPS --> ( profile : internal)  FREESWITCH  ( external) --> CARRIER --> CUSTOMER 

Freeswitch is action as mediaserver here , I can see the extern-rtp-ip is setting on the calls to CARRIER, But when freeswitch 200Ok to Opensips, it is not putting external IP. It is setting the freeswitch local ip. 

I have followed the instruction in https://freeswitch.org/confluence/display/FREESWITCH/Amazon+EC2 , but not sure why FS is not setting external IP for internal profile. 

Is there any way to force the EIP ( public IP ) to SDP to opensips?. I can see the Contact address have Public IP but not the SDP Connection IP. 

Internal.xml

  <param name="inbound-zrtp-passthru" value="false"/>

    <param name="nonce-ttl" value="60"/>

    <param name="disable-register" value="true"/>

    <param name="auth-calls" value="$${internal_auth_calls}"/>

    <param name="inbound-reg-force-matching-username" value="true"/>

    <param name="auth-all-packets" value="false"/>

    <param name="sip-ip" value="192.168.0.173"/>

    <param name="rtp-ip" value="192.168.0.173"/>

    <param name="ext-sip-ip" value="54.81.198.142"/>

    <param name="ext-rtp-ip" value="54.81.198.142"/>

    <param name="aggressive-nat-detection" value="true"/>

send 1379 bytes to udp/[192.168.0.132]:5060 at 08:53:33.106380:

   ------------------------------------------------------------------------

   SIP/2.0 200 OK

   Via: SIP/2.0/UDP 192.168.0.132:5060;branch=z9hG4bKe04b.c7469955.0;rport=5060

   Via: SIP/2.0/UDP 182.75.26.194:58618;rport=58618;received=182.75.26.194;branch=z9hG4bK-524287-1---8cfb5fbe8c5d0f23

   Record-Route: <sip:192.168.0.132;r2=on;lr;ftag=7325490b;vsf=AAAAAH1uFG18am1hcXBAIRUIFgwREU0YRxoMAAoOQRtBDlQZcmFuc3BvcnQ9VURQ;did=ad3.3f713b01>

   Record-Route: <sip:54.175.200.193:5060;r2=on;lr;ftag=7325490b;vsf=AAAAAH1uFG18am1hcXBAIRUIFgwREU0YRxoMAAoOQRtBDlQZcmFuc3BvcnQ9VURQ;did=ad3.3f713b01>

   From: "14154839556" <sip:14154839556@calldirect.piba.com>;tag=7325490b

   To: <sip:14154839556@calldirect.piba.com;transport=UDP>;tag=7Ury0X9HXp68j

   Call-ID: 7sgGUmlws7Bg64kCbksywQ..

   CSeq: 2 INVITE

   Contact: <sip:14154839556@54.81.198.142:5060;transport=udp>

   User-Agent: FreeSWITCH-mod_sofia/1.6.17~64bit

   Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REFER, NOTIFY

   Supported: path, replaces

   Allow-Events: talk, hold, conference, refer

   Content-Type: application/sdp

   Content-Disposition: session

   Content-Length: 222

   Remote-Party-ID: "Outbound Call" <sip:14154839556@calldirect.piba.com>;party=calling;privacy=off;screen=no

   v=0

   o=FreeSWITCH 1492664761 1492664762 IN IP4 192.168.0.173

   s=FreeSWITCH

   c=IN IP4 192.168.0.173

   t=0 0

   m=audio 28052 RTP/AVP 0 101

   a=rtpmap:0 PCMU/8000

   a=rtpmap:101 telephone-event/8000

   a=fmtp:101 0-16

Attaching the logs for reference. 

Regards

Andrew 

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