PJSIP Transfer/REFER with Header in 2025

Asterisk Asterisk SIP
1

Hi guys,

when searching for that online I always came across this thread: PJSIP Transfer with Headers

Since that one was closed and there is no possibility to pick up the conversation there:

Does anyone know whether adding Header on the callee’s channel has been added in the meantime?

Furthermore: going through a predial-hook (just like with PJSIP and INVITE) does not work with the Transfer function since there are no additional options like ‘Gosub’, right?

Thanks a lot!

2

It hasn’t changed.

3

You can flag it, in the other category, and ask for it to reopened, so there is a possibility.

It doesn’t work, but not for that reason. Transfer is done on the channel that would need the headers applied, so wouldn’t need the equivalent of a pre-dial subroutine. The actual reason is that the code simply does not support adding headers at that stage of a call.