User Guide for the SIP-T23P/G IP Phone 
44 
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->Sound->Ring Tones->Common. 
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. 
A ring tone for the phone is configurable via web user interface at the path 
Settings->Preference->Ring Type. 
To select a ring tone for the account via phone user interface: 
1.  Press Menu->Settings->Basic Settings->Sound->Ring Tones. 
2.  Press        or          to select the desired account and then press the Enter soft key. 
 
3.  Press          or          to select the desired ring tone.