Blue Flower

CABS 

Customer Administration and Billing System

CAC 

Connection Admission Control

CAC 

Carrier Access Code

CAMEL 

Customized Applications for Mobile Enhanced Logic

CAP 

CAMEL Application Part

CAPEX 

Capital Expenditures

CAS 

Channel Associated  Signalling

CB 

Cell Based

CBR 

Constant Bit Rate

CC 

Call Control

CCA 

Customer Care Adaption

CCBS 

Completion of Calls to Busy Subscriber

CCITT 

Comité Consultatif Internationale Télégraphique et Téléphonique

CCM 

Call Centre Management

CCN 

Charging Control Node

CCPH 

Common Control Physical Channel

CCR 

Current Cell Rate

CCS 

Common Channel Signalling

ccTLD 

country code Top Level Domain

CCTrCH 

Coded Composite Transport Channel

CD 

Call Deflection

CDA 

Circuit Duplex Asynchronous

CDF 

Channel Definition Format

CDMA 

Code Division Multiple Access

CDR 

Call Detailed Record (charging record)

CDR 

Call Data Record

CDS 

Costumer Service Department

CDV 

Cell Delay Variation

CDVT 

Cell Delay Variation Tolerance

CED 

Call Entered Digits

CER 

Cell Error Ratio

CERN 

Centre Européen pour la Recherche Nucléaire

CES 

Circuit Emulation Service

CFB 

Call Forwarding on mobile subscriber Busy

CFNRc 

Call Forwarding on mobile subscriber Not Reachable

CFNRy 

Call Forwarding on No Reply

CFT 

Cross File Transfer

CFU 

Call Forwarding Unconditional

CG 

Charging Gateway

CGF 

Charging Gateway Functionality

CGI 

Comman Graphical Interface

CHAP 

Challenge Handshake Authentication Protocol

CI 

Congestion Indicator

CICS 

Customer Information Control System

CIMD 

Computer Interface for Message Distribution

CIR 

Committed Information Rate

CLI 

Calling Line Identification

CLID 

Calling Line Identification Display

CLIP 

Calling Line Identification Presentation

CLIR 

Calling Line Identification Restriction

CLNS 

Connectionless Network Services

CLP 

Cell Loss Priority

CLR 

Cell Loss Ratio

CM 

Communication Management

CMIP 

Common Management Information Protocol

CMIS 

Common Management Information Service

CMR 

Cell Misinsertion Rate

CN 

Core Network

CNAP 

Calling Name Presentation - (CNAP)

CN-OSS 

Core Network Operations Support System

CoE 

Centre of Expertise

CoLP 

Connected Line Identification Presentation

CoLR 

Connected Line Identification Restriction

CONS 

Connection-oriented Network Service

CORBA 

Common Object Request Broker Architecture

CPCH 

Common Packed Channel

CPCS 

Common Part Convergence Sublayer

CPCS-SDU 

Common Part Convergence Sublayer-Service Data Unit

CPE 

Customer Premises Equipment

CPHS 

Common PCN handset specification

CPICH 

Common Pilot Channel

CPM 

Continous Phase Modulation

CPU 

Central Processing Unit

CR 

Call Router

CR 

Circuit Switched

CRC 

Cyclic Redunance Check

CRM 

Cell Rate Margin

CRM 

Customer Relation Management

CS 

Converse Sublayer

CS 

Charging System

CS 

Circuit Switched

CS-1 

Capability Set # 1

CSCF 

Call session Control Function

CSCF 

Call state control function

CSD 

Circuit Switch Data

CSMA/CA 

Carrier sense multiple access and collision avoidance

CSR 

Customer Service Representative

CSTA 

Computer Supported Telecommunications Applications

CTD 

Cell Transfer Delay

CTI 

Computer Telephony Integration

CTP 

Connection Termination Point

CUG 

Closed User Group

CW 

Call Waiting

CWTS 

China Wireless Telecommunication Standard