Only had one bar on other service provider, I just popped that SIM in, only one bar again that comes and goes but WiFi Calling comes on immediately so problem with Smarty SIM is probably not the phone,router or network. Bit puzzled and I don't want t...
My OnePlus is compatible with Wifi Calling and works on another carrier but not on Smarty. I have a poor,one bar signal on Smarty, could this be preventing Wifi Calling activating?
