Verizon has announced that it will start to roll out voice-over-LTE (VoLTE) on its network this year, claiming that the service will be available to customers “in the next few months.” The network’s VoLTE service will offer HD Voice, and the company says it will “have a robust line-up of VoLTE-enabled smartphones available when the service launches.” Software updates can enable VoLTE on handsets; iOS 8 has been rumored…