[OpenSIPS-Users] rtpengine_delete not returning immediately

Johan De Clercq johan at democon.be
Wed Oct 28 13:52:35 EST 2020

Would it be an option to disable rtcp?

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Van: Users <users-bounces at lists.opensips.org> namens John Quick <john.quick at smartvox.co.uk>
Verzonden: Wednesday, October 28, 2020 2:34:25 PM
Aan: users at lists.opensips.org <users at lists.opensips.org>
Onderwerp: Re: [OpenSIPS-Users] rtpengine_delete not returning immediately

A packet capture revealed some interesting facts about this problem.
There is a genuine delay in the response from rtpengine when the delete command is sent. In the packets I captured, the delay was 2 seconds.
It is possible this delay arises because I am using a low spec virtual server with very little memory to host rtpengine.
Alternatively, it could be that rtpengine is doing additional processing of the audio streams so it can send a report back to OpenSIPS.
Using wireshark to inspect the packets, I can see that the response contains round-trip times, packet loss, average/low/high MOS scores, etc.

Does anyone know if there is a way to:
 a) Reduce the delay within rtpengine so it responds quicker to the delete command
 b) To make calls to rtpengine_delete() act asynchronously so they don't block the main SIP processing child threads?

John Quick
Smartvox Limited

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