Question : Listening to calls (barging) on Elastix / Asterisk

Hi Experts,
 Apart from 555 which gives me random extensions to listen to, is it possible to add another number we can dial that will only listen to a certain extension? Need this for training purposes.

Regards,
 Martin

Answer : Listening to calls (barging) on Elastix / Asterisk

In that example...you enter "007" as the pin number when prompted then "#",... then after the beep you enter the 4 digit extension of the person you want to spy on.