BS 6450-7:1990
Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators-Specification for the procedure for in-service observation of PBXs undergoing type approval
BSI Group , 10/28/1990
$80.00
$160.02
Specifies the assessment of PBXs against the integrity of service requirements in BS 6450-1:1983 and the observation of PBXs against appropriate Parts of BS 6450 under operational conditions. Cross References:BS 4778BS 6450:Part 1:Section 6.1Telecommunications Act 1984
Product Information
Published:
10/28/1990
Pages:
14
ISBN:
0580187519
File Size:
1 file , 610 KB
Language:
English
Note:
This product is unavailable in Ukraine, Russia, Belarus
