This second edition European Telecommunication Standard (ETS) contains the technical characteristics required for end-to-end interworking over the Public Switched Telephone Network (PSTN) of 300 bits per second (bit/s) duplex modems standardized for use over the PSTN, in accordance with CCITT Recommendation V.21 [4].
PUBLISHED
SSH ETS 300 115:1997
60.60
Standard published
Jun 18, 2024