BT Quartet 1500 - Manual (Page 15)

15
If you have subscribed to your network’s Caller Display
service, the caller’s number, or name (if an exact
name/number match is found in the phonebook) will also
be displayed, See page 23.
Call timer
Your handset automatically times the duration of all
calls, showing the time on the display during your call
and for a few seconds after it has finished.
Earpiece volume
There are 8 volume levels to select from. The default is 4.
You can only adjust the earpiece volume during a call.
1. Press to increase or to decrease the earpiece
volume. The display shows the set volume, e.g. EAR VOL 2 .
Vol
Using the phone
The earpiece volume will remain at
the level set for all calls until
changed.