pilot2atc not working in my FF757-200

[kenpoh2u 0]

Hi all, I don't know what im missing on every time I fly FF757-200 with pilot2atc don't work.. atc is connected and  freq.  is set correctly, when start to talk to atc  there's no respond except I can hear transmit tone that I set.. there is no problem with other aircraft just only the 757-200 , do I have to do some setting in the radio in 757-200 ? sorry for poor English.. big thanks..!

[Dave-Pilot2ATC 870]

There is a setting in this aircraft to allow outside programs to interface to the radio.  See this thread:

Dave