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  2. Best Phones for Hard of Hearing Users - AOL

    www.aol.com/best-phones-hard-hearing-users...

    1. Panasonic 2 Handsets Expandable Cordless Phone with Easy Read Display ‍ This phone is hearing aid compatible and has several useful features, such as a large illuminated keypad, a wide volume ...

  3. Assistive Technology for Deaf and Hard of Hearing - Wikipedia

    en.wikipedia.org/wiki/Assistive_Technology_for...

    VCO telephone calls must be made through a relay service. This connection allows the person with the hearing loss to speak to the other party and read their incoming message on the telephone's display screen. There is also a portable VCO device, which can be attached to cell phones, pay phones, or cordless phones.

  4. Microsoft Cordless Phone System - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Cordless_Phone...

    The Microsoft Cordless Phone System (also known as PC Phone System MP-900) [1] is a discontinued cordless telephone introduced by Microsoft in 1998 that featured personal computer integration. [ 2 ] [ 3 ] It was Microsoft's first telephone of any kind, [ 2 ] [ 4 ] and the only phone product made by the company until the Windows Mobile series of ...

  5. Assistive listening device - Wikipedia

    en.wikipedia.org/wiki/Assistive_Listening_Device

    This is often exacerbated by the effect of room acoustics on the quality of perceived speech. Hearing aids are able to amplify and process these sounds, and improve the speech to noise ratio. However, if the sound is too distorted by the time it reaches the listener, even the best hearing aids will struggle to unscramble the signal. Assistive ...

  6. Cordless telephone - Wikipedia

    en.wikipedia.org/wiki/Cordless_telephone

    Many cordless phones in the 21st century are digital. Digital technology has helped provide clear sound and limit casual eavesdropping. Many cordless phones have one main base station and can add up to three or four additional bases. This allows for multiple voice channels that allow three-way conference calls between the bases. This technology ...

  7. Sound-powered telephone - Wikipedia

    en.wikipedia.org/wiki/Sound-powered_telephone

    The most significant distinction between ordinary telephones and sound-powered telephones is in the operation of the microphone. Since the microphones used in most telephones are designed to modulate a supplied electric current they cannot be used in sound-powered transducers. Most sound-powered telephones use a dynamic microphone.