Service Provider discovery is the process by which an ITF becomes aware of the available IPTV Service Provider(s) and learns the means for attaching to a Service Provider over a secure managed network.

An entity designated to manage and administer the texting and other multi-media services portion of Toll-Free Numbers within the Texting & Smart Services (TSS) Registry.

Synonym utility program.

Signals that enable data systems equipment to function correctly, and possibly to provide ancillary facilities. Synonym housekeeping signals.

An entity that contracts for services offered by service providers. [T1.667-1999]

A physical entity that contains the service control function, service data function and the service switching/call control functions. [T1.667-1999]

The set of processes that provide for interaction between a call control function and a service control function. [T1.667-1999]

A physical entity that implements a service switching function. [T1.667-1999]

The last point of service rendered by a commercial carrier under applicable tariffs.
Note 1: The service termination point is usually on the customer premises.
Note 2: The customer is responsible for equipment and operation from the service termination point to user end instruments.
Note 3: The service termination point usually corresponds to the demarcation point.

The term used to describe service continuity, which is supported from the network point of view.