Hi suvendu
Attempt to access the home PLMN(broadcasted at BCCH) are performed as specified
bellow:
1 The periodic attempts are only performed in automatic mode
when the MS is roaming in its home country.
2 After power on, a period of at least n minutes and at most T
minutes is elapsed before the first attempt is made.
3 The MS makes an attempt if it is on the visiting PLMN at
time T after the last attempt.
4 Periodic attempts are only to be performed by the MS while
in idle mode.
5 If the home PLMN is not found, the MS remains on the
visiting PLMN