Integrated Services Digital Network (ISDN). Conference call, add-on (CONF) supplementary service. Digital Subscriber Signalling System No. one (DSS1) protocol - Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
STANDARD published on 1.7.1999
Designation standards: ČSN EN 300185-2-V1.2.4
Classification mark: 877037
Catalog number: 55985
Publication date standards: 1.7.1999
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN