What does OTA mean?
Over-the-air. A short message mechanism, through the mobile phone terminal or server (online) way to realize the dynamic download, delete and update the Business menu in the SIM card, enable users to obtain personalized information services of the data value-added service (OTA service) OTA (over-the-air Technology) aerial download Technology . It is the technology of remote management of SIM card data and application through the air interface of mobile communication (GSM or CDMA). The air interface can adopt WAP, GPRS, CDMA1X and short message technology. The application of OTA technology enables mobile communication not only to provide voice and data services, but also to provide new business downloads. In this way, the application and content service providers can not be limited by the platform, and constantly develop more personalized services close to the needs of users, such as information on demand, interactive entertainment, location services and banking transactions. Ota air download technology, mobile phone users as long as the simple operation, you can according to personal preferences of the network provides a variety of business menus to use OTA mechanism to download to the mobile phone, and can also customize the specific business according to their own wishes.
Ota How to upgrade iOS7
Find "Settings" on the iphone-"general"-"Software Update", just click to upgrade
OTA upgrade
Download plus upgrades will be done in 20 minutes, but ... At present, more people may upgrade, the server pressure is huge, so download slow or even download failure is possible. Pro, it's like the traffic in Beijing last night, it's good to avoid the peak.
Already upgraded iOS 7 system has been upgraded to the iOS 7 system
Friendly Tips
OTA upgrade for genuine user upgrades Oh, if you are a jailbreak users do not upgrade Oh, upgrade data will be all lost oh, everyone in advance data backup.