Acronyms von A bis Z
Q.653
Empfehlung der "CCITT"/"ITU" von 1988: Logic procedures for interworking of signalling system No. 6 to No. 7 (TUP)
Empfehlung der "CCITT"/"ITU" von 1988: Logic procedures for interworking of signalling system No. 6 to No. 7 (TUP)