it also lets you receive and place free VoIP calls through Facebook. That’s right: Facebook Messenger leverages the Facebook contact list to allow you to call your friends, for free, over the Internet ...

Most people communicating on the internet are using SIP calling. Here’s how to make free SIP calls — and when you shouldn’t.

There’s a new VoIP app in the market you might not have heard of. It works seamlessly on 2G, and you can call non-app users ... VoIP is transmitted over the internet, and that helps to save ...