USA Mobile to UK SIM

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  • Forum posts: 2

Dec 20, 2015, 8:03:03 PM via Website

Hi live in the USA. We have an iPhone 6 and a Galaxy S5 and we both have WhatsUp installed. I will be going to the UK for business and will be getting a UK SIM card from Three Co.

How will WhatsUP work with a USA mobile # and a USA mobile phone with a UK SIM?

  • Forum posts: 11

Dec 21, 2015, 4:43:55 AM via Website

That's not a problem. However you can only use one sim card at once

  • Forum posts: 2

Dec 21, 2015, 10:33:32 AM via Website

Thanks Dave can you elaborate? I already have the UK SIM. I put the UK SIM in the S5 to test. Since I have a Three Co SIM Feel at Home I'm able to get data.

When I called from the S5 via WhatsUp with the U.K. SIM it worked. But it was showing US contact with US phone#. Just don't want to incur any charges from AT&T.

— modified on Dec 21, 2015, 10:34:01 AM

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