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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.

• common air interface (CAI)
• common air interface (CAI)
• common battery
• common battery
• common carrier
• Common Carrier Line Charge (CCLC)
• common channel signaling (CCS)
• Common Channel Signaling System 7 (CCS7)
• common control
• Common Intermediate Format (CIF)
• Common Profile for Instant Messaging (CPIM)
• communication manager
• Communications Act of 1934
• Communications Act of 1962
• Communications Assistance for Law Enforcement Act (CALEA)
• Communications Decency Act (CDA)
• communications software
• community antenna television (CATV)
• Compact HTML (C-HTML)
• compaction
• companding (compressing/expanding)
• Companies (RBOCs)
• compatible
• Competitive Access Provider (CAP)
• competitive local exchange carrier (CLEC)