User guide

Using the Aastra 673xi / 675xi

Other Device Functions

Handsfree / Open-Listening Mode

You can make a call in the handsfree mode, e.g. to let anyone present in the room

listen in. Before or during a call, press the Handsfree key (on the am

Aastra 6730i / 6731i and on the Aastra 6751i: the Loudspeaker key ). The

speaker is switched on. The red LED indicator next to the Handsfree key lights up.

Press the key once again to switch the speaker off.

Mute Function

If you do not want the caller to listen in to what, e.g. you are discussing with

someone in the room, you can temporarily mute the telephone. During a call

press – the Mute key . The microphone is switched off. The red LED indicator

next to the key blinks and your caller can no longer hear you. Press the Mute

key once again to switch the microphone back on.

Call Protection

You can configure a function key with the do not disturb function (please refer to

Function Keys Reference starting on page 24).

1. Press the function key to activate the do not disturb function.

The LED indicator next to the function key lights up. The person calling hears

the ringing tone, but your telephone does not signal the call.

2. Press the function key once again to deactivate the do not disturb function.

Adjusting Volume Level

You can adjust the volume of the ringer, of the handset or of the speaker with the

Volume keys .

■ During call signalling you can adjust the volume of the ringer.

■ While making a call, you adjust the volume of the handset or – in the handsfree

mode – the volume of the speaker.