Though iPhones do not support SIM card contact management out of the box, there are iPhone applications that allow you to transfer your contact information from your contacts list to your SIM card. IPhones do have tools that allow you to import your contacts, but the third party applications available allow you to manage your contacts and export them back to your SIM card quickly and easily.
Use SIManager to copy all of your iPhone contacts onto your SIM card. SIManager also allows you to copy SIM contacts to the iPhone. It has a simple tap-button interface and shows different colors for your contacts to indicate whether they have been imported, deleted or edited. It works on jailbroken iPhones.
Copy your contacts and text messages onto your SIM card using IBE SIM Card Manager. It is available by adding the following source to Installer.app, Cydia or other application managers: http://www.ibegroup.com/products/SIMCardManager.pxl As of March 2011, IBE SIM Card Manager costs $19.95 and works on jailbroken iPhones. It has a user interface that is simple to use and copies contacts and texts without using Outlook or the Mac Address Book.
Install Dekart's SIM Manager on your Windows PC to manage the contacts on your SIM card. Export your contacts from your iPhone to Outlook on your Windows PC, remove the SIM card from your iPhone and insert it into a USB smart card logon. Plug the smart card logon into your computer and use the SIM Manager software to export and sync contacts between Outlook and your SIM card. It is available for a fee and does not require you to jailbreak your iPhone. You can download Dekart's Sim Manager for a trial for free (see the link in Resources).
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