[OpenSIPS-Devel] [opensips] RTP after 100 Trying is relayed at Private IP (#704)

[apsaras]

Hello

I have a strange situation were a carrier which I am interconnected with is sending RTP after 100 Trying and before 180 Ringing with SDP. 

First of all I am not sure if the Carrier should send the RTP

Second, RTP stream is forwarded to the calling party which probably shouldn't and more strange is forwarded at the private IP of the calling party even if the fix sdp was called during call setup from the calling party.

After 180 with SDP received everithing is normalized.

OpenSIPs 2.1.1 (latest from git)
RTPEngine 4.2

The flow.

OpenSIPs to Customer Trace

91.217xxx is the OpenSIPs
94.70xxx is the Customer
192.168xxx is the local IP of the customer

![image](https://cloud.githubusercontent.com/assets/7074737/11384796/a3161000-931b-11e5-9f9f-14fa37175c6e.png)

OpenSIPs to Carrier Trace

91.217xxx is the OpenSIPs
62.xxx is the Carrier's Signaling
62.16xxx is the carrier's Media

![image](https://cloud.githubusercontent.com/assets/7074737/11384838/0df8e4ce-931c-11e5-8995-25d5017c3a43.png)


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Reply to this email directly or view it on GitHub:
https://github.com/OpenSIPS/opensips/issues/704
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