Technical manual for use by prospective purchasers: ‘The Monarch 120 Call Connect System, Technical Description Part 1’

Made:
1981
part of archive:
Collection of sales documentation and technical manuals relating to the BT Monarch Call Connect System digital PABX (private automatic branch exchange)
maker:
British Telecom

Details

Extent:
10
210
300
Identifier:
MS/2186/2
Access:
Open Access