I'll be visiting London, then Paris, then London for a few weeks. We"ll have old non-data gsm phones (band 900/1800/1900) which I think will work OK in London and Paris. Buying a prepaid sim in Paris doesn't seem to be worth it (not just $) but London will be no problems.
So.....what do UK people find is the best UK sim for useing both in UK and Paris? 99% of the calls will be to each others phones. Please
or I will have to go out shopping with HER in Paris.