After years in development, Verizon on Tuesday announced its official plans to roll out two huge new calling features "in the coming weeks," including HD voice and voice-over LTE, also known as ...

I say some phone calls above because VoLTE, or HD Voice, is not a consistent, standard feature yet, despite the fact that AT&T, Verizon, and T-Mobile started rolling out VoLTE services in 2014. AT ...

Learn how users with BSNL 4G or 5G SIM cards can activate this VoLTE feature. Send a message to 53733 with the text ACTVOLTE. VoLTE will be activated on your phone once you send the message.