This Recommendation defines a generic announcement package for use with the H.248.1 Gateway Control Protocol. The generic announcement package provides a media gateway controller with the ability to control announcements in a media gateway. Control is provided by the definition of announcement events (for example, "announcement completed") and announcement signals (for example, "play a specified announcement"). As defined in ITU‑T Rec. H.248.1, a "package" is an extension to H.248.1 that supports specific behaviour.

The changes introduced by this new edition are:

removal of superfluous information;

announcement playing clarification;

correction of announcement package editorial error.

NOTE  This Recommendation has been renumbered. It was previously known as ITU‑T Rec. H.248, Annex K.