hi henry,
i know this problems … but currently it is working on my site.
I found this example from christoph very helpful.
From my logs i learned, that the defined item for “incoming call …” does not hold the information permanent, it changes it’s state
a) from: UNDEF to <Number1>,<Number2> and
b) from: <Number1>,<Number2> to UNDEF
so i had to save the information from the event a) via rule to an other self defined item
or in my case: i combined the avmfritz binding with tr064 binding and use the (few seconds later) updated calllist of my Fritz!Box to get the last call.