why can’t make calls I have data roaming

[Devizes64]

Hi 
why can’t make calls I have data roaming

[pgn]

It helps us give you a useful answer if we know what country or countries you are visiting, @Devizes64 - ?

[MI5]

Also, if you are contract or PAYG @Devizes64 

Some guides may help.

USA - Roaming with O2 

Guide: Roaming MegaGuide 

[jonsie]

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

Click Here For Social Media Support Links VirginmediaO2