Amplification allows people who are hard of hearing to benefit from enhanced volume when using the telephone. Amplification can be provided through the handset, headset, in-line amplifier, portable amplifier or a controller on a telephone base. Some assistive listening devices can be used to provide telephone amplification as well. Mobile telephones can also be used with amplification features and devices.
An inline amplifier is a small, often box-like device with a volume control. It is attached by a cord to the telephone with the telephone handset cord plugged into the receiver for amplification. An amplified landline phone made for people with hearing loss is usually the size of a typical office phone. These phones provide a significant amount of amplification and can also often assist to make the call clearer and easier to understand.
Workplace solutions and adjustments
Telephone amplification may assist people who are hard of hearing to be able to use a mobile or office based telephone for work purposes.
References
Clarity 2005, HA40 Portable telephone handset amplifier, Plantronics Inc., Tennessee, viewed 22 June 2011, http://www.wom.com.au/files/newsletter/Misc%20Documents/HA40_Spec.pdf.
DeFreitas Saab, T. 2010, Accommodation and Compliance Series: Employees with Hearing Loss, Office of Disability Employment Policy U.S. Department of Labor, West Virginia, viewed 22 June 2011, http://askjan.org/media/Hearing.html#amp.