[OpenSIPS-Users] Change SDP when re-directed

[Mark Farmer]

Good morning

I'm having a problem with SDP info when a call results in 486, 603 etc.
OpenSIPS is running in mhomed mode with 2 interfaces, the phones are behind
NAT & working nicely but when the call is routed to Asterisk, the SDP needs
to change such that the internal IP's are used.

rtpproxy_offer etc is used for the initial call so I tried using 2 calls to
fix_nated_sdp to change the c & o parameters but that seems to append the
new IP to the existing one followed by rewritehostport & force_send_socket

How should I correctly handle this?

Many thanks
Mark.
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