Telecom Glossary C3

Casual Calling

Allow any ANI (including undefined ANIs) to access a given carrier. For example, if the originator is calling from a non-coin phone, they may dial 1010555+destination number and have the call routed through WorldCom and billed to the originating phone number.

Casual Customer

Any person or organization that dials any CIC Code. (Not necessary to presubscribe to the carrier.)

Cellular Technology

This term, often used for all wireless phones regardless of the technology they use, derives from cellular base stations that receive and transmit calls. Both cellular and PCS phones use cellular technology.

Centrex

A service that is functionally similar to a customer-premise PBX, but provided by means of equipment located in a Central Office.

Long Distance Glossary (A-1) (A-2) (A-3) (B-1) (B-2) (B-3) (B-C) (C-1) (C-2) (C-3) (C-4) (C-5) (C-6) (C-7) (C-8) (D-1) (D-2) (D-3) (D-E) (E-F) (F-1) (G-1) (H-I) (I-1) (I-2) (I-3) (I-4) (J-L) (L-1) (L-2) (L-3) (L-M) (M-N) (N-1) (N-O) (O-1) (O-P) (P-1) (P-2) (P-3) (P-4) (P-5) (P-R) (R-1) (R-2) (R-3) (S-1) (S-2) (S-3) (S-4) (S-T) (T-1) (T-2) (T-3) (T-4) (T-5) (T-6) (T-U) (V-1) (V-2) (V-Z)