Avaya IP Office 4.2 - Manual (Page 56)

IP Phone Installation Page 56
15-601046 Issue 14a (23 June 2008) IP Office 4.2
4.7 Automatic Gain Control
Automatic Gain Control (AGC) raises the volume when a caller is speaking quietly and lowers the volume when the caller
is loud. AGC can be separately switched on or off for the phone handset, headset and speaker.
The AGC settings for all H.323 IP phones can also be set through the 46xxsetting.txt file. On some phones it can also be
switched on or off through the phone's user menus.
Switching automatic gain control on/off:
1. While the phone is on-hook and idle, press either Hold 2 4 2 # (Hold A G C #). The current AGC settings are
displayed. Note that these may vary depending on the headset/speaker support provided by the phone model.
· Handset AGC =
Press the indicated key for the required setting (0 = off and 1 = on) and then press #.
· Headset AGC =
Press the indicated key for the required setting (0 = off and 1 = on) and then press #.
· Speaker AGC =
Press the indicated key for the required setting (0 = off and 1 = on) and then press #.
2. The phone should return to it normal idle state.