When eCall is activated, it connects to the nearest emergency response centre, using both a telephone and data link. This allows you and the passengers in the vehicle to communicate with the emergency centre operator and at the same time, a minimum set of data is automatically transmitted (your exact location, the time of the accident, your vehicle’s identification number and direction of travel). This allows the emergency services to assess and manage your situation.
You are not allowed to drive anymore; your car needs to be able to call emergency response. Is an EU rule.
Edit: called eCall, compulsory.
That sounds like it should be able to make a mobile call, not connect to the internet, but they probably require the latter.