scope:

Scope and purpose

This standard is one of a series, which defines and describes supplementary services within the context of an Integrated Services Digital Network (ISDN). The interaction of this service with other ISDN services is also included. The purpose of the standard is to allow maximum compatibility among network and user owned telecommunication equipment in order to increase the attractiveness and usefulness of ISDN-based capabilities.

This standard describes the operation of the basic Conference Calling service only. Other forms of Conference Calling (e.g., "Preset") are not described.

Application

This supplementary service applies to an ISDN and is intended to supplement the basic circuit mode call procedures in ANSI T1.607. It shall be used in conjunction with the other ANSI standards for ISDN supplementary services for a complete understanding of the interactions between this and other services.

This supplementary service is applicable to the following Bearer Services identified in ANSI T1.620 for the ISDN Basic and Primary Rate Interfaces:

- Speech;

- 3.1 kHz Audio;

- 7 kHz Audio.