Facebook has added free voice call support to its Messenger app for Android. The service only works in Canada for now, mirroring the initial launch of VoIP on Messenger for iOS; Facebook expanded support to the US about two weeks after the Canadian debut. If we see a similar pattern for Android, it shouldn't be too long before US-based users get to make free calls from their Messenger apps, too. In the meantime, Canadian Android owners can get the free app from Google Play now — it also contains bugfixes and minor improvements to group conversations.