[BUG] BYE Loop on Hangup From Callee

[devopsec]

Describe the bug
When hanging up an outbound call from the callee (endpoint is originator) the BYE is not forwarded to the endpoint.
This results in a BYE loop.

To Reproduce
Steps to reproduce the behavior:

1. add a carrier group
2. add the carrier group to default outbound route
3. add an endpoint group
4. reload kamailio
5. register endpoint and originate an outbound call
6. hang up on the terminating device

Expected behavior
BYE is forwarded to originating UAC.

Screenshots

Server Info:

• OS: Linux dsipv073 6.1.0-13-amd64
• Distro: debian 12
• dSIPRouter Version: v0.73
• Kamailio Version: 5.7.2
• RTPengine Version: 11.5.1.11

[devopsec]

Note that this seems to be a regression somewhere in kamailio.cfg

[devopsec]

resolved in v0.74 release