[asterisk-users] T.38 pass-through 488 handling problem

[Klaus Darilion]

Hi!

I have the following problem with Asterisk 1.4.23:


ATA w/ T.38             Asterisk          ATA w/o T.38
     --------INVITE-------->
                             --------INVITE-------->
                             <-------200OK----------
     <-------200OK----------
     --------ACK----------->
                             --------ACK----------->


     --------INVITE w/T.38->
                             ------INVITE w/ T.38-->
                             <-----488--------------
                             ------ACK------------->
                             ------BYE------------->
                             <-----200--------------

Asterisk does not forward the 488 back to the caller, but hangs up the 
callee's call leg. Further, the caller's call leg will not be hung up.

Is somebody aware of this problem and a fix?

thanks
klaus