Hi everyone,
I’ve noticed that the SIP Diversion header is not always included in forwarded calls, which causes some operators to reject or mishandle the call.
After reviewing several cases, I found that the behavior depends on the origin of the call:
- In some cases, the
Diversionheader is correctly included - In others, it’s missing, and this always happens with specific caller numbers.
For example: when the call comes from 696000000, the issue occurs, but when it comes from 656111111, it works fine.
I haven’t tested any advanced configurations or made changes to system files yet.
For now, I would like to know:
- Does VitalPBX add the
Diversionheader automatically on call forwards? - Is there any setting in the GUI or configuration file that needs to be enabled?
- Could there be any dialplan condition or module that prevents the header from being added based on the caller?
- Has anyone else experienced this behavior with SIP?
For context, I’m using VitalPBX 4 on Debian, which I upgraded from VitalPBX 4 on CentOS, using a backup originally from VitalPBX 3. I mention this in case it might be relevant to the issue.
Also, I came across this thread with a similar issue, but unfortunately, it wasn’t clearly resolved. I’m hoping to get more clarity here.
Thanks in advance for any help!
