Turning visual alerting on or off
When the Visual Alerting option is turned on, incoming calls cause the LED in the top right
corner of the phone to flash. You can turn Visual Alerting on or off.
1. Press the A button.
2. Press # to continue.
3. Press * to select Screen.
4. Press # to scroll to Visual Alert.
5. Press - or + on the volume button to turn visual alerting on or off.
Setting automatic gain control
Automatic gain control helps to maintain a constant audio level by automatically increasing or
decreasing the gain depending upon the signal level. For high level signals, the gain is reduced
and for low level signals, the gain is increased.
1. Press the A button.
2. Press # to scroll to Advanced.
3. Press * to select Advanced.
4. Press # to select AGCHandset or AGCSpeaker.
5. Press - or + on the volume button to turn automatic gain control on or off.
Changing the language
1. Press the A button.
2. Press # to scroll to Advanced.
3. Press * to select Advanced.
Turning visual alerting on or off
Avaya 1603/1603SW/1603-I/1603SW-I IP Deskphone User Guide February 2010 29
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