Call for free with Alice mobile

Since a while now, Alice provides Mobile services as well. They have a pay-as-you-go plan, with 15 ct. a minute for calling and sms'es. But... when you call from an Alice phone to another Alice phone (handy or landline, it doesn't matter), you call for free!

Right now I pay 14 ct. a minute (with Medion Mobile) and haven't seen anything cheaper than this. But when it only differs 1 ct. a minute, it will pay off pretty quickly with phone calls to people who also have Alice Mobile.

Unless you have a lot of Alice friends or call one special Alice "friend" a lot, then Medion is MUCH cheaper, as it's a 60/1 tarif, whereas Alice is 60/60. So with Medion a 65 second call costs you 15 cents, but with Alice would cost you 30 cents, twice as much. Plus of course, it's based on O2 which has somewhat poorer coverage outside of main conurbations. Alice-mobile could be a good deal for families though as you can get up to 3 SIM cards per Alice main connection, so a family can call between each other and to home without charge.

This sounds very good. With a little trick and a Sipura 3000 you can use your mobile to call home, get tone and dial out. Instant Festnetz rates at your mobile. Even more, get a VoIP account and call from your mobile at no charge at all to almost the entire world (including Germany). I have been waiting for an offer like this for several years already. I just hope they do not find out. Shhhh...

I've got a Tchibo mobile which is also O2 based, and as soon as you go out of an area with O2 coverage it just switches to the T-Mobile network, so actually the coverage is pretty good.

I assume that this is the same for all O2 users and the resellers based on O2 and not just a Tchibo thing?