Acronyms von A bis Z
R.57
Empfehlung der "CCITT"/"ITU" von 1988: Standard limits of transmission quality for planning code-independent international point-to-point telegraph communications and switched networks using 50-baud start-stop equipment
Empfehlung der "CCITT"/"ITU" von 1988: Standard limits of transmission quality for planning code-independent international point-to-point telegraph communications and switched networks using 50-baud start-stop equipment