• BS 6450-6-6.1:1986

BS 6450-6-6.1:1986

Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators. Simple call-routing mode (SCRM).-Specification for the simple call-routing mode of PBX operation, with terminating stations treated as an entirety

BSI Group , 09/30/1988

Publisher: BS

File Format: PDF

$95.00$190.50


BS 6450-6-6.1:1986 History

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