I've this very strange problem.
I've created the first entry in phonebook ... and I've see in memory
that was increased from 0 to 11k. Then I've deleted the entry ...
and the memory was increased to 12k. Then I've re-inserted the first entry and the memory was increased to 13k.
Now, making this joke, I've 25k of memory occupied and no entry in
phonebook.

How can I free this memory occupied???
Or .. it's a technical problem?

Thanks