I have a issue while setting the sip_bye_h_ headers. Here is the scenario 

A-->B

A is a sip end point and B is a PSTN call placed through the dialplan.

In this scenario, when B hangs up the call, I get proper Bye message sent to sip_bye_h headers set in the Bye message.But when A hangs up, the sip_bye_h headers are not sent in the 200 OK message. Is there a way to send the sip_bye_h headers in both BYE and 200 OK messages.

I am trying to send bridge_channel or channel_name from B to A.

Regards,

Sandeep