Integrated Services Digital Network (ISDN) - Call Hold (HOLD) supplementary service - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification (incl. Diskette!!!)
STANDARD published on 1.10.1998
Designation standards: ÖNORM EN 300141-2-V1.2.4
Publication date standards: 1.10.1998
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM