You can look into rtpengine logs with log level 7 to see if there are requests from the kamailio to rtpengine. 
Also you can look on it with tcpdump on port you passed into kamailio.cfg to connect rtpengine to.

If there are requests and responses then you can look into SDP part of the packet to see if SDP changed properly after being handled by rtpengine.
Also rtpengine after each call gives summary of the call which also sent back in more detailed way ( stats ) after calling delete message.

On Mon, 23 Aug 2021, 09:20 Mojtaba, <mespio@gmail.com> wrote:
Hello,
The Kamailio just works  as SIPProxy and it does not relay RTP packets at all. Some services are available as module in Kamailio for relaying RTP packets like as rtpproxy, rtpengine, lrkproxy. In all cases, you have to set WITH_NAT option in Kamailio configuration.
With Regards.
Mojtaba

On Mon, Aug 23, 2021 at 10:42 AM Faiz Fazaluddin <faiz.mf07@gmail.com> wrote:
Hi,
I want to see if rtp packets are being relayed through kamailio. I am attmepting to connect rtpengine with kamailio, but am not sure if it is working, how can I tell?

I have the kamailio server on a different VM than the clients. In wireshark, no rtp packets show on the server VM and rtp packets only seem to be going directly through the client VM.

Rtp engine mentions being unable to find hashtables when attempting to implement a delete_node command.

Thank you very much for your help,
Faiz

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--Mojtaba Esfandiari.S
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