Acronyms von A bis Z
Q.83
Empfehlung der "CCITT"/"ITU" von 91-92: Stage 2 description for call completion supplementary services Clause 1 (09/91) Call waiting (CW) Clause 2 (02/92) Call hold Clause 3 (1988) Terminal portability
Empfehlung der "CCITT"/"ITU" von 91-92: Stage 2 description for call completion supplementary services Clause 1 (09/91) Call waiting (CW) Clause 2 (02/92) Call hold Clause 3 (1988) Terminal portability