I just read in vodafone Greece website that the free Megabytes on their talk plans are only available for smartphone use and that if you use the phone as a modem to connect your pc or laptop they will charge you differently.

How can they know if I am using my phone as a modem for itself or my pc? If there is a way for them to know, can we spoof it? Maybe use the phone as a proxy of some kind. Can it be the User Agent string of the browser? But then if I download some torrents what?

btw their smartphone internet plan is 20eur/month unlimited while the pc internet plan is 50. Could they be writing all these to scare you off from using a smartphone plan for pc access?

Any ideas appreciated
________
Asianplaydoll live