To make or receive calls reliably we often have to turn off wifi on the phone, why?

I'm with Smarty both for phone and internet at home. To make or receive calls reliably I often have to take my phone off wifi, why?

I looked this up using Ai and here's the answer and frankly this is an absolute bore.

The issue is likely due to *Smarty's network configuration* (which operates on the *Three* network) not providing the *"WiFi Preferred"* toggle that allows phones to lock onto WiFi Calling even when mobile signal is present.

* *Signal Interference:* Without this setting, your phone aggressively switches between WiFi and mobile networks. If your mobile signal is borderline, the phone may constantly drop the WiFi connection to attempt a cellular connection, causing calls to cut out or fail.

* *Incompatibility:* Unlike some other providers, Smarty does not allow users to modify the WiFi Calling preference on the device, forcing a default behavior where the phone prioritizes cellular signal over WiFi when both are available.

To fix this, you can manually force WiFi Calling by enabling *Airplane Mode* and then turning *WiFi back on*. This disables the cellular radio, ensuring all calls and texts are routed exclusively through your home internet connection until you leave the area.