Subscriber Management System - (SMS) - Subscriber Management System is a combination of hardware and software, as well as human activities, that help organize and operate the company or person's business. The Subscriber Management System may be part of a technical chain and possibly referred to as the Entitlement Control Chain.

The Subscriber Management System could contain customer relevant information and be responsible for keeping track of placed orders, credit limits, invoicing and payments, as well as generation of reports and statistics. 

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Configuration Management {System}

Content Management System (CMS)

Element Management System (EMS)

Home Subscriber Server

Initialization

Learning Management System (LMS)

Network Management System – (NMS)

On-Demand Management System

Optical Management System (OMS)

Subscriber Authorization System - (SAS)

Subscriber's Usable Hours

XML-based Content Management System (CMS)