Section: 4.2.5.1.3 Substate, UPDATE-NEEDED
Content: The MS shall: - not send any user data; - not send any signalling information, unless for a routing area update procedure upon request of the upper layers to establish a PDN connection for emergency bearer services (UTRAN Iu mode only); - perform cell selection/reselection according to 3GPP TS 43.022[ None ]  [82] and 3GPP TS 25.304[ None ]  [98]; and - choose the appropriate new substate depending on the GPRS update status as soon as the access class control allows network contact in the selected cell.