Facebook's messenger app received an update, today, that allows Canadian users to call each other for free over Wi-Fi or cellular data connection. It also gives all users the ability to send quick voice messages. Even though it's currently only available in Canada, VoIP calling through Facebook is a pretty big deal -- imagine being able to call any of your Facebook friends for free. It's only a matter of time before that's a possibility for all Facebook users everywhere.

The voice messaging in Facebook Messenger is similar to the popular apps Voxer and HeyTell and is a push-to-talk type service where you must take turns sending each other messages. It's like a hybrid between text messaging and talking on the phone.

What do you think about Facebook's new VoIP service for Canadians? When do you predict it will roll out to the US and other countries? If you're from Canada, how the new voice calling working out for you? Anyone ditching Voxer or HeyTell in favor of Facebook? Sound off in the comments!