Acronyms von A bis Z
D.174
Empfehlung der "CCITT"/"ITU" von 1988: Conventional transmission of information necessary for billing and accounting regarding collect and credit card calls (vergl. E.277)
Empfehlung der "CCITT"/"ITU" von 1988: Conventional transmission of information necessary for billing and accounting regarding collect and credit card calls (vergl. E.277)