User guide

Local Administrative Options
38 Avaya 1600 Series IP Deskphones Installation and Maintenance Guide
Disable/Enable Automatic Gain Control
Use the following procedure to turn automatic gain control for the handset, headset, and/or the
Speaker on or off.
Note:
Note: The user can potentially override the AGC local procedure settings, as described
in the telephone user guide. If overridden, the backup file stores the AGC
value(s) set by the user and ignores any setting established using this local
procedure.
1. While the telephone is on-hook and idle, press the following sequence of keys on the
faceplate of the telephone:
Mute 2 4 2 # (Mute A G C #)
Note:
Note: Press the Mute button momentarily. Do not press this button while pressing other
keys/buttons.
2. After entry of the command sequence, one of the following displays, based on the current
value of the system value AGCHAND:
3. To change the AGC Handset value from On to Off, press 0. To change the AGC Handset
value from Off to On, press 1.
If the telephone has a Headset interface one of the following displays, based on the current
value of the system value AGCHEAD:
If the telephone does not have a headset interface, proceed to Step 5.
If AGCHAND = 1: Handset AGC=on
0=off #=OK
If AGCHAND = 0: Handset AGC=off
1=on #=OK
If AGCHEAD = 1: Headset AGC=on
0=off #=OK
If AGCHEAD = 0: Headset AGC=off
1=on #=OK