O2 in the US. Replace sim?

DavidA

I'm in San Francisco for a week next week. I'd like to ensure I don't run up a bill.

I use an O2 sim with my iPhone. I bought the iPhone direct from Apple.

I can do a data bolt on which gives me more bandwidth but there don't seem to be any others that are useful. The O2 chat person recommended I buy an US sim and use that, but presumably that means I won't keep my UK number.

Any tips appreciated.

ballyblack

switch off data roaming and use free wifi

DavidA

Thank you, but I'll need to do a lot of calls. Does what the O2 person suggest make sense, i.e. switch to a US sim?

grumbler

A local sim is generally better than roaming.
There are exceptions like Three's Feel At Home, but you asked too late.
Another good option is toggle mobile, but again I think you don't have time for getting a sim.

DavidA

Can I keep the same mobile number with a local number? I'd have thought not.

macman

No you can't.

DavidA

That's what I thought. Thanks everyone.

thefirs

http://www.o2.co.uk/apps/tu-go