Jargon buster

A Customer Relationship Management (CRM) system is a piece of software that houses all information relating to customers, enabling an employee to have a single yet comprehensive view of a customer.

D-Side (short for Distribution Side) is the segment of cabling between the Primary Connection Point (PCP) and the distribution point (DP). The D-Side is then patched to the E-Side (Exchange Side).

see Digital Access Signalling System

Data in the context of telecoms is a term broadly used to mean internet access.

A data allowance is what is included within a mobile tariff. A user may be able to exceed their inclusive data but this is usually chargeable. A data cap can be applied to prevent a user surpassing their allowance.

Many broadband service providers have a usage limit on the maximum amount of data you can download for a cheaper price. This is called a ‘cap’ Often there can be a cap on how much you are allowed to download on a certain contract – if you exceed this cap, you may have to pay an excess charge. 

A facility used to store and manage data and associated components. Generally includes backup power supplies, redundant data communication connections, environmental controls, maintenance and security. 

see Direct Dial Inward

see Digital Enhanced Cordless Telephony

see Direct Exchange Line

A delta channel (D-channel) carries control and signalling information on the Integrated Services Digital Network (ISDN).

Commonly referred to a “DOS Attack” where a malicious third party intends to temporarily or permanently disrupt the services on an endpoint.