ETSI - PRETS 300 488
Terminal Equipment (TE); Telephony for Hearing Impaired People; Characteristics of Telephone Sets That Provide Additional Receiving Amplification for the Benefit of the Hearing Impaired
| Organization: | ETSI |
| Publication Date: | 1 January 1995 |
| Status: | inactive |
| Page Count: | 18 |
scope:
This ETS specifies the electro-acoustic performance characteristics of telephony terminals which are intended for direct application to the ear (e.g. traditional handsets, operators' headsets) and which provide, at the earphone, additional amplification in the receiving direction compared with the Receiving Loudness Rating (RLR) specified in the relevant terminal standard.
This ETS applies to telephony terminals that can be connected to the Public Switched Telephone Network (PSTN) or the coincident S and T reference point of the basic access of the Integrated Services Digital Network (ISDN).
Hands-free or loudspeaking devices and extra amplification in sending for the benefit of people having speech impairments are outside the scope of this ETS.
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