Re: [87attendees] SIM purchase at the IETF (was Re: [87all] IETF 87 Berlin Meeting Review)

Ole Jacobsen <> Fri, 16 August 2013 18:41 UTC

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Date: Fri, 16 Aug 2013 11:40:58 -0700 (PDT)
From: Ole Jacobsen <>
To: John R Levine <>
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Cc: 87 attendees <>, Yoav Nir <>
Subject: Re: [87attendees] SIM purchase at the IETF (was Re: [87all] IETF 87 Berlin Meeting Review)
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On Fri, 16 Aug 2013, John R Levine wrote:

> I think it's reasonable to expect people to know what kind of phone 
> they have and what kind of networks it will work on before they go 
> looking for SIMs.  In your case it's easy, since CDMA phones don't 
> have SIMs.

Unless of course it is an iPhone. The (CDMA) Verizon iPhone5 for 
example, comes with a Verizon SIM card which may indeed be some kind 
of "dummy," but the important point is that you can insert any GSM SIM 
(allright, nano-SIM) card in the SIM slot since this iPhone ALSO 
supports all the GSM bands and is unlocked for GSM by default.

We can certainly ask local hosts/sponsors to help up identify SIM 
options (I wrote this up for the Hiroshima meeting for example), but I 
agree that it is probably unreasonable to expect someone to man a SIM 
desk for several days, unless of course a local carrier also happens 
to be meeting sponsors (ahem, DT :-), local regulations 

And in case anyone is wondering: There is really no such thing as LTE
Roaming, at least not yet.