As AT&T brings more LTE coverage to more markets, they plan to roll out support for voice-over-LTE, or VoLTE, to select markets by the end of the year. VoLTE will use AT&T’s LTE towers to convert conversations into data packets over an IP network, allowing for not just higher quality calls but also video calling and enhanced messaging services.
AT&T currently has LTE coverage in 212 markets and expects to cover 90% of the country by the end of the year. Calls over the standard UMTS network will still be available when VoLTE is not, or if a device does not support it. It should be noted that these calls will use data, and probably not a small amount. For customers on shared data plans, this could potentially force you into a higher data bracket.