Brother MFC-640CW - Manual (Page 52)

2 - 7 GETTING STARTED
Setting the Handset Volume
1
Press Menu/Set , 1 , 4 , 4 .
2
Press ▼ to select High or Low.
Press Menu/Set .
3
Press Stop/Exit .
—OR—
You can adjust the handset volume any time you are talking on
the telephone. There are two handset volume levels, Low and
High
. The default setting is Low.
Press or to adjust the volume level. The LCD shows the
setting you are choosing. The new setting will remain until you
change it again.
Volume
4.Handset