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Phone says "incoming call" when I make an outgoing call

Switched over to O2 a few months ago, to a rolling plan. Number ported from Three.When I make a call, it now starts with an automated voice that says "incoming call", which makes no sense.What's going on with this? Can I make it stop?Thanks!

Resolved! Number change

I would Iike to change my number

Resolved! Iphone 13 no Service since transfer of number

i recently ported my number over from O2 to vodafone. and since the activation my iphone shows no service from a vodafone sim. the sim works fine in other phones, tested with (also tested with vodafone) and i also tested with other sim cards. all sim...

Phone not connecting

I am in Australia. Phone is not connecting to roaming

Mobile number pay as you go has been cut off

I want my number reactivating

Resolved! 2nd mobile number for business linked to current contract and phone

Hi, kindly advise if O2 offers a second number for business purposes that I can use and is linked to my current contract ? thanks

Cellular Apple Watch - ‘No Connection’

I am completely at my wits end with the conflicting information provided by O2 staff and the way in which escalations have been completely ignored for almost 3 weeks. Looking through previous posts, my problem is not unique but I have no idea how to ...