Cheapest rates in germany for...

[inquisitor]

solomo has an automatic recharge option (minimum amount is €10) and alternatively you can access solomo's website from your handset, if it's internet capable. Another idea would be showing a friend at home how to recharge online and ask him to do it if credit runs out.

You are right, that a lot of calls are shorter than 60s. So practically solomo is only cheaper if calls last longer than 60 secs and it might take some calls to amortize those € 5 from the more expensive solomo SIM.