How does this protect me from my carrier? No matter which phone I use they still need to record who I call for "billing purposes" and know which cell is closest to route my calls.
To expand on this, does anyone know of a reliable service provider (accepting bitcoins is a bonus) for SIP Trunking[0]? Or any VoIP workflow that can perform calls to PSTN[1] (the regular landline/mobile telephone network). Or even any VoIP provider that offers a basic answering service, where the voice mail box can be checked over the internet a la google voice/skype voicemail?
Don’t have any recommendations here, just thought I’d mention that for the stated purpose—preventing the tracking of the cellphone location (i.e. where you go)—running your own VoIP to PSTN/ISDN/GSM bridge at home would be sufficient.
Completely anonymous hosted PSTN bridge would be very open to abuse, so I imagine not many of them are/will remain accessible via Tor. But for completely secure and/or anonymous communication you don’t need or want PSTN, all you need is (encrypted) VoIP–VoIP that you control, and can optionally expose via Tor (as a hidden service).
Bonus points: GSM bridge at home raises less flags. You could even “take it for a walk” from time to time to make it appear even less suspicious.
Not in Germany, where opening your WIFI makes you liable for all the things that might happen with this.
But only if you are a private person (or a small cafe/venue). If you are an ISP, you can operate hotspots wherever you want and charge whatever anyone is willing to pay. And you do not need to fear being held liable for your users actions.
[Edit]
Meant to say, that since this change of law we do not have a lot of open WIFI-Spots anymore.
