BS PD 6569-3.1:1992

Draft standard to match to and work with ETS 300 001/NET4. Apparatus with one or more particular functions for connection to public switched telephone networks run by certain public telecommunications operators. Apparatus with auto-calling, auto-answering and auto-clearing facilities-Specification for auto-calling facilities

BSI Group , 10/31/1992

Publisher: BS

File Format: PDF