Avaya 3725 User Manual page 97

Turn audio signals on/off
In idle mode a long press on the Sound off key changes
between audio signals on/off. The Sound off icon
indicates a completely silenced telephone.
• A short press on the Sound off key before answering a
call, silences the ring signal.
Lock/Unlock the keypad manually
Press the -key and then Soft key Yes to lock/unlock.
The Locked keypad icon indicates a locked keypad.
Change the volume during a call
Press the Volume button upwards to increase the volume,
downwards to decrease the volume.
Charge the battery
Charging is done in a desktop charger or in a charging rack.
Charging is indicated by orange LED. When the battery is
fully charged the LED is green and a fully charged Battery
icon is displayed.
While in a desktop charger the telephone is fully
operational. The telephone does not vibrate in charger.
The battery can also be charged in a separate battery pack
charger.
Note: Charging below 5°C will harm the battery and shorten
the lifetime.
Remove the battery
It is recommended to switch off the telephone before
removing the battery.
Avaya 3725 DECT Telephone - Quick Reference Guide