How to play games on the phone?

VoLTE is a high-definition voice and video calling service based on 4G network. Turn on the VoLTE service of the mobile phone number, turn on the VoLTE function of the mobile phone, and you can surf the Internet while making a phone call. There is no charge for opening the VoLTE function, and the call charging standard is the same as the existing ordinary voice, and there is no traffic charge.