BS 6450-7:1984

Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators-Specification for the procedure of in-service observation for PBXs undergoing type approval

BSI Group, 09/30/1988

Publisher: BS

File Format: PDF

$125.00$251.46

Description

Published:30/09/1988

Note:This product is unavailable in Ukraine, Russia, Belarus

Specifies the assessment of PBXs against the integrity of service requirements in BS 6450:Part 1:1983 and the observation of PBXs against appropriate Parts of BS 6450 under operational conditions.

All current amendments available at time of purchase are included with the purchase of this document.

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