https://helpforum.sky.com/t5/Sky-Mobile/SIM-for-WiFi-calling/m-p/5059689#M258147 <P>What SIM do I need for WiFi calling, my phone not bought from Sky?</P> Thu, 14 Aug 2025 19:28:45 GMT Wistow 2025-08-14T19:28:45Z https://helpforum.sky.com/t5/Sky-Mobile/SIM-for-WiFi-calling/m-p/5059689#M258147 <P>What SIM do I need for WiFi calling, my phone not bought from Sky?</P> Thu, 14 Aug 2025 19:28:45 GMT https://helpforum.sky.com/t5/Sky-Mobile/SIM-for-WiFi-calling/m-p/5059689#M258147 Wistow 2025-08-14T19:28:45Z https://helpforum.sky.com/t5/Sky-Mobile/SIM-for-WiFi-calling/m-p/5059690#M258148 <P>There's no specific SIM.</P><P>&nbsp;</P><P>Wifi calling may or may not work. &nbsp;You won't know until you try. &nbsp;Sky will only 'guarantee' phones purchased from them to be compatible.</P> Thu, 14 Aug 2025 19:31:07 GMT https://helpforum.sky.com/t5/Sky-Mobile/SIM-for-WiFi-calling/m-p/5059690#M258148 PandJ2020 2025-08-14T19:31:07Z