ISDN is short for Integrated Services Digital Network. Under what category of WAN technologies does ISDN belong?
A. Cell-switched
B. Circuit-switched
C. Packet-switched
D. Leased lines
ISDN is short for Integrated Services Digital Network. Under what category of WAN technologies does ISDN belong?
A. Cell-switched
B. Circuit-switched
C. Packet-switched
D. Leased lines