Integrated Services Digital Network (ISDN); Freephone (FPH) 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 2.12.1998
Designation standards: ETSI EN 300210-4-V1.2.4
Publication date standards: 2.12.1998
The number of pages: 29
Approximate weight : 87 g (0.19 lbs)
Country: European technical standard
Category: Technical standards ETSI