Dual sim with wifi calling

magenta4024203

    Anyone know of a tmobile dual sim card phone with tmobile wifi calling  One rep already midlead me into buying the S8 international model but it does not have wifi calling and the Digit app drops the call every few minutes despite fast connecting.

      All replies

      • sweetpeach

        Re: Dual sim with wifi calling

        The ONLY phones with wifi calling built in are T-Mobile branded phones... it's actually a selling feature! However, I believe there are apps that can add wifi calling (Skype?) though I think they require a subscription.

          • smplyunprdctble

            Re: Dual sim with wifi calling

            sweetpeach wrote:

             

            The ONLY phones with wifi calling built in are T-Mobile branded phones... it's actually a selling feature! However, I believe there are apps that can add wifi calling (Skype?) though I think they require a subscription.

            My Nexus phones and Pixel 2 weren't T-Mobile branded and have WiFi Calling

             

            WiFi Calling has been built in to Android for a few releases now.  The problem is many non-T-Mobile carrier-specific devices exclude it at the request of the carrier.  For the OP, an International device is probably the best bet, but it's not guaranteed.  S/he will have to rely on hoping that someone in the T-Mobile community actually has a Dual SIM device that has WiFi Calling and happens to be in the forum here.  Probabilities don't seem high there, so I would suggest the OP search for Dual SIM devices they're interested in and find forums specific to the device to see if WiFi Calling is available within the device.

          • rexlunae

            Re: Dual sim with wifi calling

            OnePlus devices are, generally, dual-SIM, and also generally support T-Mobile WiFi calling.

            • syaoran

              Re: Dual sim with wifi calling

              There are third party ROM's you can flash to your device to make it fully compatible with T-Mobile and WiFi Calling.  Everything you need to know can be found over at XDA Developers.  It might not be an official solution but it might be worth your time to look into.

              • magenta3828007

                Re: Dual sim with wifi calling

                Wi-Fi calling works fine also on non-T-mobile phones (international). On Dual SIM phone Wi-Fi calling (same as Duos) will operate correctly only when T-mobile SIM card is the sole card activated (slot SIM1 recommended). Once you add and activate second SIM card Wi-Fi Calling feature will not be accessible and Wi-Fi Calling Icon will disappear.

                 

                This can be model specific and can differ. For example Samsung Note 8 Duos (international version) is capable to Wi-Fi calling even after I switch on SIM2 but SIM1 has to be 2G/3G/LTE while SIM2 is 2G/3G only. Once I turn on LTE on SIM2 Wi-Fi Calling feature disappears - and vice versa comes back when I turn SIM2 LTE off.

                 

                For best reliability I suggest to use T-mobile phones as their software and system updates are always optimized for best performance with T-mobile latest features.