A communications apparatus includes a processing resource arranged to support, when in use, a main application and a user interface. The apparatus, in at least one embodiment, also includes a data store and a user interface host entity arranged to access, when in use, a user interface template selectable in response to a received message. The user interface template includes an expression of a number of user interface elements. The user interface is arranged to translate the user interface template selected from the expression of the number of user interface elements into a user interface instantiation.