M00002803
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TIA-504 Revision A, February 1, 1998 Telecommunications - Telephone Terminal Equipment - Magnetic Field and Acoustic Gain Requirements for Handset Telephones Intended for Use by the Hard of Hearing
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Availability date: 09/09/2021
Description / Abstract:
This Standard defines magnetic field requirements for all
handset telephones intended to couple magnetically with hearing
aids.
This Standard also covers requirements for receive-amplified
handset telephones intended for use by the hard of hearing.
This Standard does not cover other devices for the hard of
hearing to use the telephone network.