Hi All,

  I use freeswitch to bridge one incoming call to other target phone number.
  I use bypass_media mode.
  So the rtp is not go through the freeswitch,
  By I notice that When LegB reply 183 or 200 SDP message. Freeswitch
change it 2833 telephone-event payload type. and forwarding the message to
caller. This make the caller use wrong dtmf payload type to send dtmf

  What wrong with that?  How can fix it?
  Any information or help is welcome.

Thanks