Frustrated by dropped calls at the office? Ericsson's (NASDAQ:ERIC) solution to the problem might be a boon for AT&T (NYSE:T) stock, says Fool contributor Tim Beyers in the following video.

Specifically, Ericsson is introducing a system of portable cells called "Dots" that connect to a base station, which, in turn, distributes 150 Mbps of voice and data signal to places that would otherwise be unreachable. Plans call for introducing the devices by the second half of 2014. In a press release, AT&T senior vice president Kris Rinne said Dots will be one of several tools to choose from in its "next-generation toolkit."

What that means specifically isn't entirely clear. But one thing's for sure, at 150 Mbps Dots could help AT&T significantly expand its LTE network and finally mount a serious challenge to Verizon.

Is it too soon to buy AT&T stock on this news? Is Verizon in any danger? Tim answers these questions and more in the video. Please click to watch now, and then leave a comment to let us know what you think.