Re: [SR-Users] Decrypting SRTP with Kamailio + rtpengine

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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