A method comprising receiving, from a network node, a temporary terminal device identity that identifies a type of a terminal device; transitioning to a radio resource control inactive state or to a radio resource control idle state; and transmitting a radio resource control request message comprising the temporary terminal device identity that identifies a type of a terminal device, wherein the radio resource control request message comprises: a radio resource control connection resume request message, if the transition was to the radio resource control inactive state; or a radio resource control setup request message if the transition was to the radio resource control idle state.