I've just bought. The Siemens SL 55 , which is also sometimes used was my own. At that time, but it was still n good phone, now it is only a very small phone.
will operate the thing I use a prepaid card from AldiTalk . Since the minute or SMS costs 11 cents in all networks, which of course is far too expensive. BUT: There is a nice flat rate for 3,99 € per month, which includes talk of aldi aldi talk to all calls and SMS. My girlfriend moved to then. Recommended.
