Yealink SIP-T21 - Manual (Page 35)

Customizing Your Phone
25
To adjust the volume when the phone is idle:
1. Press to adjust the ringer volume.
Note
To adjust the volume when the phone is during a call:
1. Press to adjust the volume of currently engaged audio device
(handset, speakerphone or headset).
Ring tones are used to indicate incoming calls. You can select different ring tones to
distinguish different accounts registered on your phone, or to distinguish your phone
from your neighbor’s.
To select a ring tone for the phone via phone user interface:
1. Press Menu->Settings->Basic Settings->Ring Tones.
2. Press or to select the desired ring tone.
3. Press the Save soft key to accept the change or the Back soft key to cancel.
If the ringer volume is adjusted to minimum, the icon will appear on the LCD screen.