Integrated Services Digital Network (ISDN); Telephony terminals; Payphones
STANDARD published on 15.3.1995
Designation standards: ETSI I-ETS 300400-ed.1
Publication date standards: 15.3.1995
The number of pages: 19
Approximate weight : 57 g (0.13 lbs)
Country: European technical standard
Category: Technical standards ETSI