Constant tone detection

Constant hangup tone detection is relatively simple. It is controlled by the following parameters in the Signaling Type parameter group:

The Hangup Detection parameter must be set to Constant Energy Detection. The Constant Energy Minimum and Constant Energy Maximum parameters define the energy band inside which a constant tone is assumed to be the hangup tone. If the tone you get from your switch is not being detected with the default values, you need to reset these parameters.