Aastra Dialog 4222 Dialog 4220 Lite/4222 Office for MX-ONE (TSE), user guide - Page 72

Settings Ring signal volume Use the Volume keys to adjust the ring signal volume when the phone is idle or ringing. Adjusted volume is stored. ì Press to adjust the volume. On the Dialog 4222 Office phone, a volume symbol is shown for a few seconds (replacing your extension number). Mute ring signal You can suppress the ring signal for an incoming call. É Press to supress the ring signal. The ring signal is switched off for the current call, and your phone is automatically set to Silent Ringing (see below). Silent Ringing If you do not want to be disturbed by the ring signal but still want to answer an incoming call, you can switch off the ring signal. Incoming calls are only indicated by a flashing line lamp and display information. When the phone is in idle mode, or when ringing: É Press to switch off the ring signal. The Mute key lamp is switched on to indicate Silent Ringing. The ring signal will automatically be switched on the next time you lift the handset or press any key. 72 Dialog 4220 Lite/Dialog 4222 Office