- Channel Associated Signalling
Term given to protocols where dedicated channels are assigned to each traffic channel.
- Consultative Committee on International Telephone & Telegraph
This was the previous (before June 1994) for ITU-T
- Common Channel Signalling
A mode of operation whereby the the signalling channel is used as a datalink to carry call control and management signals and is not dedicated to particular bearer channels in a fixed pattern.
- Code Division Multiple Access
“Under CDMA, communications channels are created by assigning a special coding scheme to information flows. CDMA-based second generation cellular radio systems are in use in parts of Asia and North and South America.”
- Customer Digital Subscriber Line
- Circuit Group Blocking Message
- Circuit Group Unblocking Message
- Carrier Identification Code
The CIC is a number used by switches at each end of a point-to-point telephony circuit (controlled by ISUP or TUP) to identify a specific bearer channel. The bearer channel is typically a single time slot on a T-1/E-1 interface
- Calling Identity Delivery & Suppression
- Calling Line ID
- Common Language Location Identification
- Calling NAMe - CNAM is an Intelligent Network service which allows delivery to the subscriber of the calling party number and a readable calling name in digital readout, identifying the caller to the called party.
- Continuity Test Message
- Call Progress Message
- Circuit Reservation Acknowledgement Message
- Cyclic Redundancy Check
A method of checking for transmission errors in E1 trunk lines.
- Circuit Reservation Message
- Capability Set 1
Refers to the SS7 Intelligent Network (IN) Standard ITU-T Intelligent Network CS-1 Standard
- Circuit Supervision Control
- Circuit Validation Response Message
- Circuit Validation Test Message