What information is stored on iPhones Sim Card?

Discussion in 'iPhone' started by AnimalPaintball, Jun 13, 2008.

  1. macrumors regular


    Dec 13, 2007
    Reason Im asking, is because I am thinking about getting the 3G and when I change sim cards, Im curious if it will switch over all my ringtones, contacts, pics, etc....

  2. Moderator emeritus


    Mar 25, 2002
    London, England
    SIM cards never hold much more than contacts, and on an iPhone I don't think this is even the case.
  3. macrumors 6502a


    Dec 17, 2007
    San Diego, CA
  4. macrumors 65816


    May 3, 2008
    Hampshire, England
    Wirelessly posted (PPC; 240x320; HTC_TyTN/1.0 Profile/MIDP-2.0 Configuration/CLDC-1.1 Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile 7.7))

    Change the sim from what phone? Why are you changing sim?
  5. thread starter macrumors regular


    Dec 13, 2007
    I think Im calling the card by the wrong name. For some reason SIM came into my head. Im talking about the card that you take out when you use the paper clip to open at the top of the iPhone.

    Thnx and sorry :)
  6. macrumors 68000

    Jun 10, 2007
    Cary, NC
    That's the SIM card.
  7. macrumors 65816

    Jul 23, 2007
    sim cards don't hold that kind of information. they mainly hold your carrier information (account/phone number/etc). the iphone's only holds that which i think is lame. every other GSM phone you can store your contacts on it (makes switching phones easier) and some (like SE) allow you to store sms/mms/email messages on it as well.

    so no, your ringtones and whatnot won't transfer. but they're on your computer/itunes library so why would you need them to? you just transfer them onto the new phone when you sync it.
  8. macrumors 68000

    May 16, 2006
    You have the right name.

    The SIM card's primary purpose is to supply customer account information to the wireless network.

    If you take the SIM card out of the iPhone and put it in any other phone, your price plan, telephone number, etc all travel with the SIM card into the other phone.

    None of your multimedia (ringtones, pics, etc) are usually stored on your SIM card.

    It is also possible to store a contact list (names, phone numbers, etc) on a SIM card, but I don't know if the iPhone uses that capability.
  9. macrumors 6502

    Jun 13, 2008
    SIM = Subscriber Identity Module

    It identifies you to your network the local cell tower communicates wiht your phone and registers your IMEI and SIm and that is how calls come through every time you move into a new area your IMEI is logged by the provider.

    No data is stored on the SIM on the iphone except the SIM serial number which is tied to a phone number by your service provider
  10. macrumors 6502


    Feb 4, 2008
    North Carolina
    Also the SIM card can't hold much information. On my old Razr I couldn't store voice prompts. Even if the iPhone could I wouldn't think that you could put pics or ringtones on it.
  11. macrumors regular

    Jun 8, 2008
    Right and the new iPhones will have a SIM built in again... Anyway... if you have previous version of the iPhone your numbers pics and other stuff is backed up in iTunes. They will be transfered when you plug your phone into iTunes the first time...
  12. macrumors 65816

    Jul 23, 2007
    that's because razr's couldnt do a lot of things. you can actually store about 64kb worth of information on a sim card (at least ATT/Cingular's 64k cards). that would normally entail your contacts, but you can also store messages like i mentioned above. you can't store ringtones, games, etc on it though.


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