How to set my iPhone 14 for call wile on holiday

[9595122]

Is this in setting or is in my 02 account 

[jonsie]

Where are you on holiday

Some countries now need 4G and wifi calling enabled on the account

These are some tips to try :

•   Reboot phone.
•   Manually search for a different network
•   If using an iPhone, change data apn to  mobile.o2.co.uk
•   Call customer service to check for any roaming bars
•   Or if you message O2 using the social media links below, they should be able to help you with this