The packages in Recommendation ITU-T H.248.3 define a framework for specifying capabilities associated with user interface elements, such as text display, keys, dynamically labelled keys, indicators and alphanumeric input. In addition, specific extension packages for telephone keypads and telephone function keys are defined.

This Revision incorporates corrections to the Set Indicator signal "State" and "Indicator description" parameters.

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