> On Jun 14, 2015, at 7:09 PM, Jeff Weinberger <[email protected]> wrote:
>
> I have a friend traveling to the U.S. from China. He is bringing his
> phone, but wants to get a U.S. SIM for a few weeks.
>
> Does anyone know where to look for this or how to get a good deal?
>
> Any help or direction is much appreciated!
In addition to making sure that the phone is unlocked, as others have
mentioned. You also need to know both what protocols the phone talks (e.g.:
CDMA, GSM, LTE) and at what frequency bands. The later information is
especially hard to come by, and there are often multiple "carrier" versions of
the models that have different radios in them. You will need to know all of
this to match up with a supported network.
In the case of LTE and iPhone, Apple has a page that makes the problem
a little clearer:
http://www.apple.com/iphone/LTE/
So assuming the friend has an iPhone that supports LTE and is unlocked,
he could find his model there, and see if there are U.S. carriers that will
work on that phone, and then go through that list to find one that would sell
him coverage for that time.
Note that this is not entirely "just a U.S. problem", but our carriers
have been laggards on selling "contract free" connections (part of the problem).
—
Karl Kuehn
[email protected]
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