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Reply To: SD Drop Rate on A interface!!!


hi mahmoud,

I would consider taking the msg just before the assg complete ( = assign request ?), which is the last one that’s actually sent on A interface *during* the sd phase.
the assg complete indicates that the MS did land on the TCH successfully.
From the Assign request to the assign complete, the possible problem is a TCH assign failure, which is (usually) due to radio problems on the TCH frequency (which may be different than the SDCCH frequency).