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sethandrew999's avatar
sethandrew999
Network Novice
Hace 2 años

Problem with OPPO phone in USA

I have a dual-sim OPPO FInd phone, and I have a USA SIM card with T-Mobile. For the last couple of years I've traveled back and forth to the UK, switching between US and UK sim cards with no trouble....
  • syaoran's avatar
    Hace 2 años
    sethandrew999 wrote:

    Does that imply that my phone isn’t going to ever work with T-Mobile for voice calls?

    Yes.  As of last year, VoLTE is now required to make and receive calls on the T-Mobile network.  No compatible VoLTE on your device means the device is no longer compatible with T-Mobile USA or any US based cellular provider's network.