Has face to face conversations or conversations over the phone been replaced by texting,facebook,twitter,ect?

I use to love to call my friends but more recently I feel more comfortable with texting them or sending them a message on facebook. This has happened to many others as well and I wonder why because it is a lot easier to just simply have a conversation with someone on the phone or in person than having to write out everything you want to say to them. Also talking to someone prevents a lot of misunderstandings which often come out of texts or messages.