ETSI - PRETS 300 492
Public Switched Telephone Network (PSTN); Category II Specification for 14 400, 12 000, 9 600 7 200 and 4 800 bits per Second Duplex Modems Standardized for Use on the PSTN
| Organization: | ETSI |
| Publication Date: | 1 January 1995 |
| Status: | inactive |
| Page Count: | 53 |
scope:
This European Telecommunication Standard (ETS) specifies the technical characteristics required for end-to-end interworking over the Public Switched Telephone Network (PSTN) of 14 400 bit/s, 12 000 bit/s, 9 600 bit/s, 7 200 bit/s and 4 800 bit/s duplex modems standardized for use over the PSTN, in accordance with CCITT Recommendation V.32 bis [1].
The term "modem" in the context of this ETS includes all physical implementation practices for a voice band modem, which is galvanically connected to the PSTN.
This ETS specifies ten modes of operation, each with five modes of use (see subclause 5.2).
This ETS also contains descriptions of the tests to be performed in order to confirm compliance with the functional requirements contained herein. A general description of the test conditions and test requirements is given in annex A (normative).
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