Family member is visiting US from UK. His cell phone number starts with a 0 plus 10 digits. He can phone a US number with no problems dialing just 1 area code and number, but I can't call his cell phone.

I've tried what I think is every possibility;
dropping the 0, changing 0 to 1, dialing 011 44 before the number (without the 0). Nothing works. What am I doing wrong? In case it matters, his service at home is Orange and his service here seems to switch between T mobile and Cingular. I've posted this on the US board but thought maybe someone here might know better. TIA.

It should start with 00 44 then 10 digits staring with 7.

Thanks Sheila but still no go. I get a recording with that scenario saying the number is incomplete or invalid.

Normally when we dial the UK we dial 011 44 then 10 digits. I've tried that and no good.

It should work if the service provider allows receiving calls in the US...if the UK mobile number is 07886882307 (a totally made up number BTW) then dialing 011 44 7886882307 should work if the phone is accesible.

That was the first option I tried xyz. Maybe the answer is the service provider won't allow receiving calls?

why do you need the 11?

Sheila, normally whenever we dial a European number from the US we first have to dial 011 which connects with international calling, then we dial the country code, etc. Just dialing a 0 then the number doesn't get us "out of the US".

I have Orange service on my mobile.

Assuming you are calling from the US, 011 44 then his 10 digit mobile number (dropping the 0) is correct.
I receive calls in the US from the US this way.

You could also post your query on the orange.uk website

Sheila, it is my understanding that to dial internationally from Europe, you dial the prefix 00. From the US, the prefix is 011.