To increase or decrease the volume of your handset, press the up or down Volume button.
The volume adjustment will change the volume for the currently active voice.
8-2 IP870 Operation Manual
Telephone Features
Volume
You can redial the last outside number by pressing the Redial button. To redial, lift the
handset and press the Redial button. This function is not available when placing Internet
calls.
Redial
You can place or answer calls with the handset or using the Speaker button. Press the
Speaker button for hands-free conversation.
Speaker
You can mute the handset or speakerphone when in a call. This will prevent the remote
party from hearing what you are saying to other people.
Mute
You can generate a flash hook on the outside line by pressing the Flash button. To toggle
between calls waiting, you can also press the Flash button.
Flash
