As far as I am aware 112 isnt a 'second-class' service. It is an emergency number that can be dialed across Europe, and will allow you to get aid wherever you are. As I understand it it is essentially the same as dialling 999 (or the equivalent in whatever country you are in). The met differences are that it can be dialed on locked phones and phones without sim cards, will override the password on the phone, and will automatically trace your location.
I'm not sure but was 101 the number you were thinking of? That is the non-emergency number for the police.