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.

1. Introduction

Introduction 1–19

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Siemens 600 Series, 300 Series manual Voice Volume Keys