Attachm. to Publ. Switched Teleph. Netw. (PSTN) - General techn. requirem. f. equipm. connected to an analogue subscriber interf. in t. PSTN - Chapter 3: Ringing signal character.
STANDARD published on 1.4.1995
Designation standards: ÖNORM ETS 300001-3
Note: WITHDRAWN
Publication date standards: 1.4.1995
The number of pages: 43
Approximate weight : 129 g (0.28 lbs)
Country: Austrian technische Norm
Category: Technical standards ÖNORM