This post isn’t really PC related, but since we have so many users with an iPhone, it is worth knowing how to backup your data.
Backing up your iPhone data is really simple, so make sure you do it, because if you don’t, you will probably regret it. You do this in iTunes and it usually takes just a couple of minutes.
How to Backup Your iPhone Data
Connect your iPhone to your computer and open up iTunes. In the left menu, right-click on your iPhone and you will see a bunch of options.

Just select the “Back Up” option and the process will begin. Just be patient, it may take a couple of minutes, depending on how much data you have to backup. This is always a good idea to do before jailbreaking an iPhone, in case you need to restore.
Once your backup is done, you can view the backups in iTunes. Click “Edit” -> “Preferences” and select the “Devices” tab. Here you can view or delete your backups.

If you ever need to restore from a backup, just right-click your phone as in step (1) and select “Restore from Backup..”
Done!



If I want to use software (back up SMS and Call), what apps I should you to solve this problem?
Only back up SMS, how can I do ?
if you just want to backup SMS only, you can do it in a couple of ways. You can jailbreak your phone, which will then allow you to access the SMS.db file. (not generally recommended though)
The second option is to use software that will extract it for you. One such program is listed below.
http://www.wideanglesoftware.com/touchcopy/index.php