https://helpforum.sky.com/t5/Sky-Mobile/Wifi-Calling-on-S25-Ultra/m-p/5172075#M279396 I have recently upgraded to an S25 Ultra from the S23 and have intermittent connection to WiFi calling. I am using dual sim as the phone is a works mobile but don't seen to have the issue with the Vodaphone sim as often. I never had this issue with the S23 Ultra Sat, 20 Dec 2025 23:01:28 GMT SteveGriff 2025-12-20T23:01:28Z https://helpforum.sky.com/t5/Sky-Mobile/Wifi-Calling-on-S25-Ultra/m-p/5172075#M279396 I have recently upgraded to an S25 Ultra from the S23 and have intermittent connection to WiFi calling. I am using dual sim as the phone is a works mobile but don't seen to have the issue with the Vodaphone sim as often. I never had this issue with the S23 Ultra Sat, 20 Dec 2025 23:01:28 GMT https://helpforum.sky.com/t5/Sky-Mobile/Wifi-Calling-on-S25-Ultra/m-p/5172075#M279396 SteveGriff 2025-12-20T23:01:28Z https://helpforum.sky.com/t5/Sky-Mobile/Wifi-Calling-on-S25-Ultra/m-p/5172078#M279398 <P>Sky only guarantee WiFi calling if the device was purchased from them.</P> Sat, 20 Dec 2025 23:16:19 GMT https://helpforum.sky.com/t5/Sky-Mobile/Wifi-Calling-on-S25-Ultra/m-p/5172078#M279398 PandJ2020 2025-12-20T23:16:19Z