[App_rpt] No courtesy tone from link

[Bob Peret]

Hello Group.

I am currently running asterisk 1.4 and the latest app_rpt code on some 
custom HW (ADI Blackfin).  All seems to be working well.  I have two 
zaptel channels configured to talk to the custom repeater ports.  There 
is a full duplex UHF repeater on Zaptel/1 and a half duplex link radio 
on Zaptel/2.  When I link them the I do not get a courtesy tone on the 
main repeater when someone on the link releases PTT.  Is this normal?  I 
had to write my own Zaptel driver to control the HW so maybe I missed 
handling of a signal or something.  If I knew that this worked on other 
setups it would help me determine where my issue is.
Thanks,
Bob Peret (KD6LFW)