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bers the characteristics of the circuit.Assuming that the circuit is the same on the next call, the circuit characteristics do not have to be relearned, which results in faster connect times, yielding obvious advantages to the end user and Internet service provider (ISP), alike. See also handshaking, ISP, modem, and V Series.

• CIC (Carrier Identification Code)
• CIDR (Classless Inter-Domain Routing)
• CIDR (Classless Inter-Domain Routing)
• CIF (Common Intermediate Format)
• CI II (Computer Inquiry II)
• CIP (Classical IP over ATM)
• cipher
• CIR (Committed Information Rate)
• circuit
• circuit switch
• circuit-switched data (CSD)
• circuit-switched network
• circuit terminating equipment
• Citizens Band (CB)
• cladding
• Clarke orbit
• Clarke, Sir Arthur C. (1917–)
• Class 1
• Class 1
• Class 2
• Class 2
• Class 3
• Class 4
• Class 4/5
• Class 5