User's Manual

synonymous with the UT mark. The M and T marks are recommended by the Alliance for

Telecommunications Industries Solutions (ATIS). The U and UT marks are referenced in

Section 20.19 of the FCC Rules. The HAC rating and measurement procedure are

described in the American National Standards Institute (ANSI) C63.19 standard.

When you're talking on a cell phone, it's recommended that you turn the BT (Bluetooth)

mode off for HAC.

For information about hearing aids and digital wireless phones

Wireless Phones and Hearing Aid Accessibility

http://www.accesswireless.org/Home.aspx

FCC Hearing Aid Compatibility and Volume Control

http://www.fcc.gov/cgb/consumerfacts/hac_wireless.htm