I just found a problem about the triggers.
I made a call with 2:55 mins = 175 seconds. But in the database, only 85 seconds were recorded. the other 90 seconds were added to a previous call which was not answered.
so, apparently, the phone updates the call_duration table even DURING the call, when the call itself is not even in the database.

I don't think there is an easy fix for that, will think about it... any ideas?

(edit) oh, the call is in the database right after starting it... but that means, the 85 seconds were added at first, and the 90 seconds were added later, strange... but this could make the fix easier

(edit2) ok, this change should do it… not tested very much yet, because its too late to call people but it shoud do…