BT Quartet 1500 - Manual (Page 27)

27 Handset settings
The default setting is 1.
To change the external ringer volume
1. Press .
2. Press or until HANDSET is displayed and press .
3. Press or until EXT RING VOL is displayed then
press . The current volume is shown and played.
4. Press or to select a volume then press .
To change the internal ringer melody
1. Press .
2. Press or until HANDSET is displayed and press .
3. Press or until INT MELODY is displayed then
press . The current melody is played.
4. Press or to select a melody then press .
Menu
Vol
Menu
Vol
Menu
Vol
Menu
Menu
Vol
Menu
Vol
Menu
Vol
Menu
The default setting is 3.