ČSN P I-ETS 300380 (877554)

Universal Personal Telecommunication (UPT). Access devices. Dual Tone Multi Frequency (DTMF) sender for acoustical coupling to the microphone of a handset telephone

STANDARD published on 1.8.1996

Czech preface only -
Print design (1.30 USD)

The information about the standard:

Designation standards: ČSN P I-ETS 300380
Classification mark: 877554
Catalog number: 19980
Publication date standards: 1.8.1996
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN