1. A method of performing a packet domain event report by a mobile termination (MT) of a user equipment (UE) to a terminal equipment (TE) of the UE, the method comprising: receiving, by the MT from the TE, a context activation request for a first packet data protocol (PDP) type; attempting, by the MT, a context activation with the first PDP type; receiving, by the MT from a network, a second PDP type assigned by the network for the context activation instead of the first PDP type; and sending, by the MT to the TE, an event message including a reason parameter indicating why the context activation request for the first PDP type is not granted, wherein the event message further includes a second context identifier allocated by the MT for an MT initiated context of a second address type, and wherein the second context identifier is only included when the reason parameter indicates ‘single address bearers only allowed’, the MT supports an MT initiated context activation of the second address type without an additional command from the TE and the MT has activated a context associated with the second context identifier.