Syberia 2

This achievement can be unlocked within the first few minutes of your playthrough.

For this achievement, you'll need to call every available contact on your cellphone. In fact, there are only four possible people to call: Kate's mother (Mother), Marson (Office), Oscar the automaton (Oscar), and the Candy Machine Company (Candyroff). You already begin the game with all of them except Candyroff. Go inside the store besides the train in Romansberg and talk to Colonel Emeliov Goupatchiev. Talk to him about every subject. Now go outside. (*EDIT* Check the gate at the far north and interact with it. You'll notice that it is locked. Interact with the Cole machine south of the map and talk to the litte girl who will be below you.) Return inside the supply shop. The Colonel should be on the other side of the counter. Go to his previous spot and notice that he was fiddling with a candy machine. You will notice a phone number on the machine which will be listed on your cellphone from now on. Open up your cellphone tab (LB) and successively call each contact. Even if their are not available, each call will count for the achievement.

This achievement is very easy to obtain. However, if you are having problems with obtaining this one, or if you need help with other elements in Syberia 2, feel free to comment my solution, or send me a PM.

Thanks to Mental Knight 5 for adding more precision to this solution!