# Adjust Audio Stream

Automatic Gain Control (AGC) is a MiVoice Business ICP, MiVoice Business feature that adjusts the volume of audio streams of individual calls so they are neither too loud nor too faint. You enable or disable AGC on a system wide basis. The default setting is Disabled. AGC settings are maintained during system reboots and are backed up.

To enable automatic gain control functionality:

1. Access Text console and connect to the NuPoint UM node.

2. Log in as "root" and type the admin password.

3. Exit to the Linux prompt and enter touch /usr/vm/config/AGCon

4. Restart the server.

To disable automatic gain control functionality:

1. Access Text console and connect to the NuPoint UM node.

2. Log in as "root" and type the admin password.

3. Exit to the Linux prompt and enter rm -f -r /usr/vm/config/AGCon