Can we please have a read-out of APN settings that support Wi-Fi calling?
The standard SMARTY APN does not reliably support Wi-Fi calling in UK but the three.co.uk APN seems to until my OPPO's software is updated which resets the APN to the standard SMARTY settings and Wi-Fi calling ceases to work.
There are several 3UK APNs which I have configured into the phone and which have allowed Internet calling to function but it always suddenly ceases to function without reason.
Can anyone share their experience please re SMARTY/3 android APNs or may we please know from SMARTY what it is possible to use as the phone is capable and SMARTY claims that it supports this function reliably...
I have read other posts where (for example) a Moto handset has suddenly burst into (wifi-calling) life after it not being configurable so it is plainly a 3/SMARTY anomaly and some consistency or explaining would ease users' collective frustration re this matter...It would also be useful to know at what signal-strength Wi-Fi calling kicks-in, as it seems to be available on only very low cell-strength?
Many thanks in anticipation of clarification from SMARTY; 3UK, or fellow users...
