Acronyms von A bis Z
Q.666
Empfehlung der "CCITT"/"ITU" von 1988: Logic procedures for interworking of signalling system No. 7 (TUP) to R2
Empfehlung der "CCITT"/"ITU" von 1988: Logic procedures for interworking of signalling system No. 7 (TUP) to R2