Acronyms von A bis Z
E.161
Empfehlung der "CCITT"/"ITU" von 1993: Arrangement of digits, letters and symbols on telephones and other devices that can be used for gaining access to a telephone network
Empfehlung der "CCITT"/"ITU" von 1993: Arrangement of digits, letters and symbols on telephones and other devices that can be used for gaining access to a telephone network