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Glossary C


Glossary C


C7 is the UK name for Signalling System #7 (SS7). SS7 is a set of telephony signalling protocols, which are used to set up the vast majority of the world's public switched telephone network telephone calls.



Customer Account Form - This is the form used by the Finance team to setup/authorize a new customer account.


Call to Action

A statement or instruction, typically promoted in print, web, TV, radio, on-portal, or other forms of media (often embedded in advertising), that explains to a mobile subscriber how to respond to an opt-in for a particular promotion or mobile initiative, which is typically followed by a Notice (see Notice).



Another term for Mobile Operator.  A company that provides wireless telecommunications services. The term Carrier is typically used in the United States and Canada.

Also referred to as: Operator, Mobile carrier, Mobile Network Operator, Mobile Carrier, Network Operator, Operator Company.


Carrier Aggregation (CA)

Carrier Aggregation is a feature of LTE-Advanced that allows mobile operators to combine two or more LTE carriers into a single data channel to increase the capacity of the network and data rates by exploiting fragmented spectrum allocations.



Code-Division Multiple Access



Central European Time (CET) is one of the names of the time zone that is 1 hour ahead of Coordinated Universal Time (UCT). It is used in most European and some North African countries. Its time offset is UTC+1.



A program that enables asynchronous interactions between two or more mobile subscribers.


Chatbot or Bot

Software based program that simulates a conversation with a human. These are popular with many messaging apps such as social/chat apps and more recently, RCS.



The front-end of an application (interface) with which a user interacts. In addition, client programs typically validate data entered by the user, dispatch requests to server programs, and sometimes execute business logic. The client process also manages the local resources that the user interacts with such as the monitor, keyboard, workstation CPU and peripherals. One of the key elements of a client workstation is the Graphical User Interface (GUI).



The SMPP standard and interface created by the IT company CMG for their own SMSC. The most common usage for CMG SMPP is when people talk about Logica SMSC. However, the SMPP version 3.3 (CMG/Logica) and the public SMPP version 3.4 (and later) are in most systems compatible with each other.


COM1, COM2, ...

Serial ports.


Common Shortcode (CSC)

Short numeric numbers (typically 4~6 digits) to which text messages can be sent from a mobile phone. Wireless subscribers send text messages to common short codes with relevant keywords to access a wide variety of mobile content.


Concatenated Messages

Mobile phones and their networks sometimes support concatenated short message service (or concatenated SMS) to overcome the limitation on the number of characters that can be sent in a single SMS text message transmission (which is usually 160 according to GSM standard). Using this method, long messages are split into smaller messages by the sending device and recombined at the receiving end. Each message is then billed separately. When the feature works properly, it is nearly transparent to the user, appearing as a single long text message.


Confirmed Opt-in

The process used for verifying a mobile subscriber’s intention, and for gaining the subscriber’s explicit agreement to participate in a mobile program/initiative.



A product offered (by a content provider) in a service to a subscriber. Content is typically mobile-related, such as a ringtones, wallpaper, or Java games; however, content may also be non-mobile, or subscription-related.


Content Provider (CP)

A company that creates and offers content, for example, graphic products, ringtones, games, news, information and entertainment services, and so on.


Country ID

Identification Number for a country.


Country Pricing

When a customer request for pricing they want pricing to wireless subscribers in a country. This is the blended price of all operators in a country.



Content Provider also referred to as the 'customer'.



Content Provider - see entry for Content Provider (CP).



A Communications-platform-as-a-service (CPaaS) is a cloud-based platform that enables developers to add real-time communications features to their own applications without needing to build backend infrastructure and interfaces.



Change Request Board - All changes to functionality must be submitted to a Change Request Board for approval.



Common Shortcode - see entry for Common Shortcode (CSC).



Common Short Code Administration - see entry for Common Short Code Administration (CSCA).



CSR is a Certificate Signing Request - it is needed for the purchase of a certificate for a URL.



The CTIA is the predominant US Trade Association that represents the US wireless industry. From carriers and equipment manufacturers to mobile app developers, to content creators, the CTIA brings together a dynamic group of companies that enable consumers to lead a 21st century, connected life.  (


CTR - Click-Through Rate

Click-Through Rate measures what percentage of people clicked (or tapped on a smartphone) an add or call to action in a message.



Price given in designated currency.

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