Appleinfo: Re: [apple-iphone] CDMA SIM Card

vendredi 18 janvier 2013

Re: [apple-iphone] CDMA SIM Card

I am not totally up to date on cellular things, but... with a quick web search for RUIM, I found the following:

"Removable User Identity Module (R-UIM) is a card developed for cdmaOne/CDMA2000 ("CDMA") handsets that extends the GSM SIM card to CDMA phones and networks. To work in CDMA networks, the R-UIM contains an early version of the CSIM application. The card also contains SIM (GSM) application, so it can work on both networks. It is physically compatible with GSM SIMs and can fit into existing GSM phones as it is an extension of the GSM 11.11 standard.[1]" from:

http://en.wikipedia.org/wiki/Removable_User_Identity_Module

I was surprised to find from reviewing the previously suggested Wiki page, that there are 5 cellular providers in the US that provide both GSM and CDMS. But the page does say that the information might be out of date.

Thank you for informing me on the existence of RUIM cards.

Have you tried contacting Sprint or Verizon for your answer?

Brent

On Jan 18, 2013, at 3:27 AM, Vishal Sheth wrote:

Traditionally cdma does not have sim cards. But now they've started giving
RUIM cards which are similar to gsm sim cards. For iphone cdma part is
programmed in the phone. US cellular in USA has started giving RUIM card
based phones along with cards.

On Jan 18, 2013 4:27 PM, "N.A. Nada" whodo678@comcast.net> wrote:

> **
>
>
> There is no such thing as a CDMA SIM card.
>
> For the iPhone, I understand, Verizon provides a SIM card for their iPhone
> so that it can use GSM internationally, but the phone is CDMA for US
> service. I believe the Verizon iPhone is the only phone that can do both.
> The AT&T iPhone can only do GSM voice.
>
> A quick web search found this list of carriers and which cellular
> transmission they use:
>
>
> http://en.wikipedia.org/wiki/List_of_United_States_wireless_communications_service_providers
>
> Just remember GSM, SIM card. CDMA, no SIM card.
>
> On Jan 17, 2013, at 6:55 PM, Vishal Sheth wrote:
>
> Does Sprint/Verizon give CDMA SIM card like US cellular? What about other
> operators like Straight Talk, etc?
>
> Vishal Sheth

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