https://helpforum.sky.com/t5/Sky-Mobile/Thinking-of-joining-Sky-mobile-from-O2/m-p/5132319#M273017 <P>Hi, I have a SIM only monthly contract with O2, I'm a very light user and the cost of O2 is more than Sky. Has anyone else made the same move? I want to have wifi calling and from what I can see Sky offers that. I don't want to leave O2 and regret it so would be gratefull for any comments.</P> Tue, 04 Nov 2025 08:19:33 GMT Andyfr 2025-11-04T08:19:33Z https://helpforum.sky.com/t5/Sky-Mobile/Thinking-of-joining-Sky-mobile-from-O2/m-p/5132319#M273017 <P>Hi, I have a SIM only monthly contract with O2, I'm a very light user and the cost of O2 is more than Sky. Has anyone else made the same move? I want to have wifi calling and from what I can see Sky offers that. I don't want to leave O2 and regret it so would be gratefull for any comments.</P> Tue, 04 Nov 2025 08:19:33 GMT https://helpforum.sky.com/t5/Sky-Mobile/Thinking-of-joining-Sky-mobile-from-O2/m-p/5132319#M273017 Andyfr 2025-11-04T08:19:33Z https://helpforum.sky.com/t5/Sky-Mobile/Thinking-of-joining-Sky-mobile-from-O2/m-p/5132338#M273022 <P>Hi&nbsp;<a href="https://helpforum.sky.com/t5/user/viewprofilepage/user-id/4421002">@Andyfr</a>&nbsp; for your information sky use the O2 network (they don't have their own). With regards WiFi calling if the phone wasn't purchased from sky then they don't guarantee it will work, it might, but it also might not. If you are purchasing a phone from sky then you won't have that problem provided you buy a WiFi calling compatible device.&nbsp;</P> Tue, 04 Nov 2025 08:42:21 GMT https://helpforum.sky.com/t5/Sky-Mobile/Thinking-of-joining-Sky-mobile-from-O2/m-p/5132338#M273022 63johnw 2025-11-04T08:42:21Z