https://community.sony.rs/t5/xz-series/wifi-calling/m-p/3628607#M48921 <P>I'm not sure what you mean, but I have both Wi-Fi and 4G calling activated on my Vodafone UK&nbsp; XZ1C and they have had no detrimental effect on my phone.</P><P>I have my Preferred Network Type set to 4G (Preferred) 3G/2G and I have not changed any of the Networking Settings in Developer Options.</P><P>I have chosen to keep my phone on Android 8 Oreo so if you have upgraded to Pie then maybe something went wrong.</P><P>If Wi-Fi Calling is activated then calls will only switch to Wi-Fi at times when your mobile signal is poor.</P> Fri, 08 Feb 2019 20:38:32 GMT Tizer 2019-02-08T20:38:32Z https://community.sony.rs/t5/xz-series/wifi-calling/m-p/3628606#M48920 <P>In the last week, I called Vodafone UK to get WiFi Calling enabled, just as a nice to have back up in case my 4g coverage was rubbish , I must be honest, my 4g signal coverage and WiFi coverage is pretty rubbish now since doing this.</P><P>It's like my phone is deciding between both and then saying, sod this, I'll just do nothing !!!</P><P>Is it just me or is there a issue ?</P><P>I think I'll turn WiFi Calling off !!!</P> Fri, 08 Feb 2019 16:29:29 GMT https://community.sony.rs/t5/xz-series/wifi-calling/m-p/3628606#M48920 152bobby 2019-02-08T16:29:29Z https://community.sony.rs/t5/xz-series/wifi-calling/m-p/3628607#M48921 <P>I'm not sure what you mean, but I have both Wi-Fi and 4G calling activated on my Vodafone UK&nbsp; XZ1C and they have had no detrimental effect on my phone.</P><P>I have my Preferred Network Type set to 4G (Preferred) 3G/2G and I have not changed any of the Networking Settings in Developer Options.</P><P>I have chosen to keep my phone on Android 8 Oreo so if you have upgraded to Pie then maybe something went wrong.</P><P>If Wi-Fi Calling is activated then calls will only switch to Wi-Fi at times when your mobile signal is poor.</P> Fri, 08 Feb 2019 20:38:32 GMT https://community.sony.rs/t5/xz-series/wifi-calling/m-p/3628607#M48921 Tizer 2019-02-08T20:38:32Z