About Administering Audio Equalization - Avaya one-X 9640 User Manual

6. Automatic Gain Control.
7. Press Select or OK.
8. Select the Handset, Headset, or Speaker for which you want to turn AGC on or
9. Change or OK or use the Right/Left arrows to turn AGC on or off.
10. Save.

About administering audio equalization

The Federal Communication Commission (a branch of the US Government) in its Part 68
standard, requires support for Hearing Aid Compatibility (HAC). This is an alternative way to
provide audio equalization on a handset, from the acoustic standards specified in TIA-810/920
and S004, and may be of benefit to some users of t-coil capable hearing aids.
As of Release 2.6.7, the 9600 Series IP deskphones support the ability to choose either of
these standards. Because individual organizations and users differ in how they might want to
implement this choice, the telephone provides 3 ways to specify the desired audio equalization:
• Settings File— The administrator can set ADMIN_HSEQUAL. The default value, 1,
specifies Handset equalization that is optimized for acoustic TIA 810/920 performance
unless otherwise superseded by Local Procedure or User Option. The alternate value, 2,
specifies HAC.
• Local Procedure— When users are denied access to Options for administrative reasons,
but individual users need an equalization value other than the one in the settings file, the
HSEQUAL Local Procedure provides a "backdoor" to allow the telephone to be
administered with the desired audio equalization value. "Default" uses the settings file
value unless superseded by User Option. "Audio Opt." is optimized for TIA-810/920
acoustic performance, and "HAC Opt." is optimized for HAC telecoil performance.
• User Option— The user can select "Default" (which uses the settings file value unless
superseded by Local Procedure), "Audio Opt." which uses Handset equalization that is
optimized for acoustic TIA 810/920 .performance, or "HAC Opt." which uses Handset
equalization that is optimized for electrical FCC Part 68 HAC telecoil performance.
• Handset equalization options are effected in the following order:
®
Avaya one-X Deskphone SIP 9640, 9640G IP Telephone User Guide
off.
a. The telephone will use the User Option value if one was selected and saved.
b. Otherwise, if a Local Procedure value was selected and saved, the telephone
will use the local Procedure value.
c. Otherwise, if a Settings file value is specified and saved the telephone will use
that value.
Options & Settings
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