Skype is a free voice chat program which you can download here. All you need is a microphone/headset to speak. I noticed on the Social anxiety forum they had a nice skype group who talked to each other about their problems and helped each other overcome their phone shyness. I think it could also work for the depressed or lonely. If things work out people can have conferences or just get to know each other better one on one. Just leave your skype username in here so people can add you.