Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 4: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT) proforma specification for the user
STANDARD published on 31.5.2000
Designation standards: ETSI EN 300141-4-V1.3.3
Publication date standards: 31.5.2000
The number of pages: 31
Approximate weight : 93 g (0.21 lbs)
Country: European technical standard
Category: Technical standards ETSI