Hi jjohnwongtp
The MS do meet the specs, meaning that they attempt to listen to the timeslot 0 on the BCCH carrier looking for the SCH and decode the BSIC, but they fail. We know that because on the logs files we can see “Synchronization error”. There must be some kind of frame synchronization error that doesn’t allow the MS to decode the information on the SCH.
It doesn’t happen all the time and it seems that the Nokia 6200 are more sensitive to the problem.