RIM is expanding its BlackBerry Messenger service, which lets BlackBerry users text other BlackBerry users for free, to include free voice calls when you're connected to WiFi.
It's compatible with all BlackBerry OS 6 devices and above.
If you want this functionality, just download the new BlackBerry Messenger 7 app, which will be available in BlackBerry App World today.
We're skeptical that this will do much to turn around RIM's fortunes. To borrow a line from Arianna Huffington, "When your house is burning down, you don't worry about the remodeling."
However, RIM will formally announce new BlackBerry phones running its new BlackBerry 10 operating system on Jan. 30, 2013. The WiFi calling feature could be a big part of that.
More From Business Insider