presubscription

A procedure by which an end user designates an interexchange carrier (IXC) as the

primary carrier for intraLATA or interLATA toll calls on an equal access (i.e., 1+ dialing) basis. See also equal access, interLATA, intraLATA, and IXC.

• Carrier Access Charge (CAC)
• Carrier Access Code (CAC)
• carrier class
• carrier frequency
• carrier grade
• Carrier Identification Code (CIC)
• carrierless amplitude phase modulation (CAP)
• carrier sense multiple access/collision avoidance (CSMA/CA)
• carrier sense multiple access (CSMA)
• carrier sense multiple access with collision detection (CSMA/CD)
• carrier serving area (CSA)
• carrier system
• carrier system
• Carterfone Decision
• Carterfone Decision
• Cartesian coordinates
• Carty, John Joseph (1861–1932)
• CAS
• Cat 1 (Category 1)
• Cat 2 (Category 2)
• Cat 3 (Category 3)
• Cat 4 (Category 4)
• Cat 4 (Category 4)
• Cat 5 (Category 5)
• Cat 5 (Category 5)