Administering audio equalization
Issue 5
August 2014
53
4. Press
Save
to store the new setting and redisplay the Admin Procedures screen.
Administering audio equalization
The Federal Communication Commission (a branch of the US Government) in its Part 68
standard, has made Hearing Aid Compatibility (HAC) a mandatory requirement. The HAC
feature 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.
Release 6.2 onwards, 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 deskphone 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unless otherwise superseded by Local Procedure or User Option.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 Craft Procedure provides another method to administer the deskphone with the
audio equalization value that you require. Use the Craft password to gain access to the
Admin Procedures screen. The default password is
27238
. “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value unless superseded by User Option.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” by which the deskphone 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value (unless superseded by Local Procedure), “Audio Opt.”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:
a. The deskphone uses the User Option value if selected and saved.
b. If a Local Procedure value was selected and saved, the deskphone uses the local
procedure value.
c. If a Settings file value is specified and saved the deskphone uses that value.
d. If none of the above options are set, the deskphone uses Handset equalization that is
optimized for TIA-810/920 acoustic performance.
Summary of Contents for one-X 9611G
Page 4: ......
Page 7: ...Contents Issue 5 August 2014 7 Appendix A Glossary 85 Index 89 ...
Page 8: ...Contents 8 SIP Deskphones Release 6 4 Installation and Maintenance Guide ...
Page 20: ...Introduction 20 SIP Deskphones Release 6 4 Installation and Maintenance Guide ...
Page 66: ...Local administrative options 66 SIP Deskphones Release 6 4 Installation and Maintenance Guide ...
Page 88: ...Glossary 88 SIP Deskphones Release 6 4 Installation and Maintenance Guide ...