[Serusers] Revisted Error: force_rtp_proxy2: can't extract body from the message

[Ranga]

> I've hacked my ser.cfg but can someone comment on why I would be recieving a "200 OK" with a
> Content-Length: 0?
> 
> The change I made to my onreply_route is below. The only thing I can see about these messages
> versus others is that the CSeq says "CSeq: {some digits} BYE" with "Content-Length: 0".

You answered your question!

Not every 200 OK mandated to have content. Only 200 OK received in
reply to INVITE will have content. Also, 180 or 183 may have early
media description.

You may be doing t_on_reply for all the methods. IMO, you will need to
do that only for INVITE.