[asterisk-users] whisper time remaining

[Victor Alvarez]

Hello everyone,

 I'm trying to find out a way to whisper the time remaining for a 
prepaid application on a established channel. Unfortunately I think 
there is a lack of PlayBack/Background commands which can be applied on 
a working channel as well as a lack of spy/whispering commands available 
via Asterisk Manager. Does anyone know how to implement this?

 Thanks a lot.

Regards,
  Victor