Section: 4.2.5.1.8 Substate, PLMN-SEARCH
Content: When the MM state is IDLE, the GMM substate PLMN-SEARCH may be entered if the MS is in automatic network selection mode and the maximum allowed number of consecutive unsuccessful routing area update attempts controlled by the GPRS routing area updating attempt counter (subclause 4.7.5) have been performed. If a new PLMN is selected, the MS shall reset the routing area updating attempt counter and perform the routing area updating procedure. If the selected cell is known not to be able to provide normal service, the MS may initiate GPRS attach for emergency bearer services (UTRAN Iu mode only).