[Freeswitch-users] No hangup tone after zap channel closed, tones in general

Hello, How shall I do to get a hangup tone on an FXS port after the channel is closed ? Is there something specific to configure in openzap ? For instance, if I call the following extension from an FXS port : I get no tone after the hangup application is called. I also wonder if there is some documentation on the tones.conf file format, and about the variables uk-ring, us-ring, bong-ring, sit in vars.xml (when are they used, what is the syntax). I could not find any info on wiki. Thank you for helping François