Verizon's HD voice and video chat feature is now live, just like it promised back in August. The carrier officially calls it "Advanced Calling 1.0," and it lets you make high-definition voice calls over LTE to other Verizon phones that also have the capability. Its video chat function, on the other hand, is a combination of HD voice and real-time video feed, though it can transfer the video portion of the call from LTE to Verizon WiFi when available. Anyone with a compatible device can access the feature at no additional charge, with HD voice costing the same as your standard call rates. Video, however, will be billed as data, with one minute eating up between six to eight MB.