Acronyms von A bis Z
S.23
Empfehlung der "CCITT"/"ITU" von 1993: Automatic request of the answerback of the terminal of the calling party, by the telex terminal of the called party or by the international network
Empfehlung der "CCITT"/"ITU" von 1993: Automatic request of the answerback of the terminal of the calling party, by the telex terminal of the called party or by the international network