Mobile phones whilst at the ring
 

Might be usefull to you if your on Vodafone
I'm registered now
What is Vodafone Passport and how does it work?

Opt in to Vodafone Passport and you can call the UK from over 35 European countries – as well as Australia and New Zealand – paying your standard home rate.
Whenever you make a call back to the UK, or within the country you're visiting, there's a 75p connection charge. Then you pay your home rate for the time you spend on the call. You can even use your inclusive minutes if you pay monthly – and your Freedom Pack minutes if you’re on pay as you go.
When you receive a call, you pay the 75p connection charge – and then you can talk for up to 60 minutes free of charge. After that you pay 20p a minute.
You won’t be able to use your inclusive texts abroad – but sending a text to the UK costs just