Can lumia620 back up SMS and phone numbers?

Thank you for your interest in Nokia Lumia620 mobile phone! Lumia620 mobile phone supports SMS and contact backup. You only need to register and log in a Microsoft account to back it up. Microsoft account provides 7GB SkyDrive. Cloud hosting can upload and download photos and office files directly through mobile phones and computers. The mobile phone can clear the history and cache through the browser, but it can't use antivirus software such as 360. Windows Phone system is a relatively safe mobile phone system. If you use it normally, you don't have to worry.