Could I help you?
Sale! View larger

ITU-T R.121

New product

ITU-T R.121

Standard limits of transmission quality for start-stop user classes of service 1 and 2 on anisochronous data networks

More details

$25.00

More info

Author ITU
Editor ITU
Document type Standard
Format File
ICS 33.020 : Telecommunications in general
Number of pages 1
Year 1980
Document history
Country Switzerland
Keyword CCITT R.121;ITU-T 121;121