Section: 4.1.1.6 Specific requirements for MS configured to use timer T3245
Content: The following requirement applies for an MS that is configured to use timer T3245 (see 3GPP TS 24.368[ Non-Access Stratum (NAS) configuration Management Object (MO) ]  [135] or 3GPP TS 31.102[ Characteristics of the Universal Subscriber Identity Module (USIM) application ]  [112]): When the MS adds a PLMN identity to the "forbidden PLMN list" or the "forbidden PLMNs for GPRS service" list or sets the SIM/USIM as invalid for non-GPRS services or GPRS services or both, and timer T3245 is not running, the MS shall start timer T3245 with a random value, uniformly drawn from the range between 12h and 24h. Upon expiry of the timer T3245, the MS shall erase the "forbidden PLMN list" and the "forbidden PLMNs for GPRS service" list and set the SIM/USIM to valid for non-GPRS services and GPRS services. When the lists are erased, the MS performs a cell selection according to 3GPP TS 43.022[ None ]  [82] and 3GPP TS 25.304[ None ]  [98]. If the MS is switched off when the timer T3245 is running, the MS shall behave as follows when the MS is switched on and the SIM/USIM in the MS remains the same: - let t1 be the time remaining for T3245 timeout at switch off and let t be the time elapsed between switch off and switch on. If t1 is greater than t, then the timer shall be restarted with the value t1 – t. If t1 is equal to or less than t, then the MS will follow the behaviour as defined in the paragraph above upon expiry of the timer T3245. If the MS is not capable of determining t, then the MS shall restart the timer with the value t1.