Configuring Kamailio to Exclude ACK and BYE

Hello everyone,

I am using Kamailio as a SIP proxy for my Asterisk server, and the SIP message flow is as shown in the image below:

This is not in line with my requirements. I need the SIP message flow to be like the image below:

The main difference between the two models is that the ACK and BYE messages should not pass through Kamailio.

Could you please let me know which module or setup options I need to use in order to make Kamailio work as shown in the second image? Thank you for your attention.

It is not clear whether Alice or Bob is Asterisk.

In any case, it is the proxy, not Alice or Bob that is using Record-Route to force itself to stay in the signalling path.

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