They can...

On 8/18/20 1:25 PM, Sergey Safarov wrote:
> Thinks 180 Ringing messages do not contain SDP.
> Some misunderstanding present here
>
> Sergey
>
> On Tue, Aug 18, 2020 at 9:51 AM Ildar Mukhametzhanov <im@voice-on.de
> <mailto:im@voice-on.de>> wrote:
>
>     Hello!
>
>     __ __
>
>     Decrypting SRTP with Kamailio + rtpengine.____
>
>     Hello! I have a task to decrypt SRTP for a legacy switch which
>     doesn’t support it.____
>
>     Simply adding rtpengine_manage("RTP/AVP") didn’t help. SDP converted
>     from SRTP to RTP while proxying INVITE to legacy switch, but 180
>     Ringing wasn’t converted back to SRTP.____
>
>     Little more detailed config snippet:
>
>     __ __
>
>     route[RELAY] {____
>
>     ...____
>
>     if (is_method("INVITE")) {
>
>     __ __
>
>     if ($rd=~$var(switch_ip_mask)) {____
>
>     rtpengine_manage("RTP/AVP");____
>
>     } else {____
>
>     rtpengine_manage();____
>
>     }____
>
>     ...____
>
>     }
>
>     __ __
>
>     Could someone please advise typical scenarios to achieve it, I
>     suppose the task is pretty standard.
>
>     __ __
>
>     Thank you in advance!
>
>     __ __
>
>     __ __
>
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Alex Balashov | Principal | Evariste Systems LLC

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