Integrated Services Digital Network (ISDN); Telephony 7 kHz, videotelephony, audiographic conference and videoconference teleservices; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification (Endorsed by AENOR in December of 2004.)
STANDARD published on 1.12.2004
Designation standards: UNE-EN 300267-1V1.2.2
Publication date standards: 1.12.2004
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Category: Technical standards UNE