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I have been using TracFone/AT&T on SIM 1 and today I activated TracFone/T-Mobile on SIM 2 to see if I can get WiFi calling on it.
The TracFone/T-Mobile APN codes installed automatically (Text APN to 611611). SIM 2 is active, and I can make and receive calls on it. But I can't find any setting that says "WiF Calling" -- not in "More" -- and a search in SETTINGS on "calling" or "WiFi Calling" did not have any results.
Could it be an APN code needs to be added?
Any suggestions appreciated.