ha ok, sorry, i didn’t see it was a question.
for the example below, the probable cause will be “radio link failure” or ” reversion to old channel”.
But as far as i can see, all the handover failure causes on A interface trace are “abnormal”. I think the vendor can put which ever cause he wants, it’s not mandatory to put the cause that corresponds to the problem : the MSC does not care about the cause of the failure.
note: i’m just talking about A interface.