PRETS 300 381 : NOV 93
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
TELEPHONY FOR HEARING IMPAIRED PEOPLE - INDUCTIVE COUPLING OF TELEPHONE EARPHONES TO HEARING AIDS - PERFORMANCE REQUIREMENTS AND TESTING METHODS
01-12-1994
12-01-2013
Specifies characteristics and related test methods for a magnetic field generated by telephone terminals for coupling to hearing aids with magnetic pick up coils. Applicable to both analogue and digital telephony terminals.
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