Section: 4.2.2.2 Service State, ATTEMPTING TO UPDATE
Content: When in state MM IDLE and service state ATTEMPTING TO UPDATE the mobile station shall: - perform location updating procedure at expiry of timer T3211, T3213 or T3246; - perform normal location updating when entering a new PLMN, if timer T3246 is running and the new PLMN is not equivalent to the PLMN where the MS started timer T3246; - perform normal location updating when the location area identification of the serving cell changes, if timer T3246 is not running; - if entry into this state was caused by c) or d) or f) (with cause different from "abnormal release, unspecified") or g) (with cause "retry upon entry into a new cell") of subclause 4.4.4.9, then location updating shall be performed when a new cell is entered; - if entry into this state was caused by e) or f) (with cause "abnormal release, unspecified"), g) (with cause different from "retry upon entry into a new cell"), i) or j) of subclause 4.4.4.9, then location updating shall not be performed because a new cell is entered; - perform normal location updating at expiry of timer T3212; - not perform IMSI detach unless timer T3246 is running and the location area of the current cell is same as the stored location area; - support request for emergency calls; - use other request from CM layer as triggering of normal location updating procedure (if the location updating procedure is successful, then the request for MM connection is accepted, see subclause 4.5.1), if timer T3246 is not running; - respond to paging, if the location area of the current cell is same as the stored location area; - respond to paging (with IMSI) ; and - for an eCall only mobile station (as determined by information configured in USIM), perform the eCall inactivity procedure at expiry of timer T3242 or timer T3243. In addition, mobile stations supporting VGCS listening or VBS listening shall: - indicate notifications to the GCC or BCC sublayer for which a channel description has been received in the notification by the RR sublayer; - reject requests of the GCC or BCC sublayer to respond to notifications for which no channel description has been received in the notification by the RR sublayer; - request the RR sublayer to receive a voice group or broadcast call if the GCC or BCC sublayer requests the reception of a voice group or broadcast call for which a channel description has been received in the notification by the RR sublayer and then go to the service state RECEIVING GROUP CALL (LIMITED SERVICE).