I would like to know if galaxy S9+ dual sim has the capability for T-Mobile wifi calling?
I see that you're new to our Support Community; welcome! You bring up a great question. No, only the T-Mobile versions of the S9+ will support WiFi calling. You can learn more about our WiFi calling here: Wi-Fi Calling .
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Manage your T-Mobile account
Use the T-Mobile App or your My T-Mobile account
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