The problem is getting an update that allows wifi-calling. I am on .3247 which is a modest update of .2228 and allows wifi-calling. Since the wifi-calling "outage", techs have suggested they may OTA an MR anyway. And, there's supposed to be a 10.3 that allows wifi-calling. However, if they do send out an MR, unclear if it would work on any but stock OS.
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