Functions > Power Dialling > Attention Tone for Power Dialling

Attention Tone for Power Dialling
If the attention tone for power dialling has been enabled, the attention tone signals that the subscriber being called with power dialling is no longer busy and the loudspeaker has been switched on. The volume of the attention tone is dependent on the configured ringer volume.
 
Proceed as follows:
Using COMfortel Set (page Settings/functions > Signalling/ringer, check box Attention tone (power dialling))
Using the telephone (function key or menu settings > signalling > attention tone check box power dialling)

COMfortel 1600 - Firmware V2.2 - COMfortel Set V3.16 - Advanced Information V10 02/2019