Siemens 600 Series - Manual (Page 33)

Introduction 1–19
1. Int
rod
uction
During a conversation, you can use your speaker-
phone instead of your handset by pressing the Speaker
key and hanging up the handset. If you want to switch
back to using your handset, pick it up. For more infor-
mation, see “Using the Speakerphone” on page 2–14.
Voice Volume Keys
Use the Volume Up (▲) and Volume Down (▼) keys
to adjust the voice volume of your telephone. While
on a call, press ▲ to raise the volume of the voice you
are hearing, or press ▼ to lower the volume of the
voice you are hearing. Press either key until you reach
the desired voice level. When you hang up or switch
to another call, the voice volume returns to the default
level.