Przemolog,
Well, I tried it, but perhaps I did it incorrectly. Did you mean, enter "Star" - 137 - "Star", before entering the country code? I did that, but the same thing happened.
I've also tried dialing their "Easy Code" numbers, i.e., 094 for customer service, 089 for balance inquiry, etc., and that does not work either. I even tried searching for the different available carriers, i.e., Cingular, and T-Mobile, and registering with them to see if that was the problem. Since I can change registration with these, I assume the phones are able to receive, just not able to send a signal.
Sigh ----