Verizon's LG Revolution should be the first phone in the US to support Voice over LTE (VoLTE), the carrier's ecosystem development executive lead Brian Higgins said Tuesday. The device will be part of a larger rollout for voice on 4G across the network due to start in earnest in mid-year. The feature will let any compatible smartphone not only use VoIP as though it were regular cellular service but will be the first wide-scale instance in which Verizon users can call and use data at the same time.