Changing number format in Dialer & Contacts

Dec 7, 2011
Anyone have any method for changing the number format in the dialer and contact information from the current xxx-xxx-xxxxx format to the UK standard xxxxx-xxxxxx? It's surely in a config file somewhere but I wouldn't have any idea where to look.

I hope I'm not reposting but I couldn't find this answered anywhere. It would be a nice finishing touch to a really solid ROM.