Facebook publishes new "Hello" telephony app
And something else from Facebook: recently the Reef app presented by the group. With this app you could take short snaps, much like Snapchat. Recently you can also make calls with WhatsApp. Now Facebook has also launched its own app for making phone calls.
With the new Facebook app you can now make calls via VOIP and see information about the contacts who are currently calling you. Then, for example, this will happen Profilbild displayed, where the caller lives, etc.
The only questionable thing is how Facebook can match all of this information to the specific caller. In addition, the app requires access to almost all functions / sensors of the cell phone (camera, microphone, location, etc.). Even users who bother you can easily be blocked via the app.