Over-the-Air programming (OTA) refers to various methods of distributing new software, configuration settings, and even updating encryption keys to devices like cellphones, set-top boxes or secure voice communication equipment (encrypted 2-way radios).One important feature of OTA is that one central location can send an update to all the users, who are unable to refuse, defeat, or alter that update, and that the update applies immediately to everyone on the channel.Over-the-air provisioning (OTAP) is also available in wireless environments (though it is disabled by default for security reasons).It allows an access point (AP) to discover the IP address of its controller.The Knox E-FOTA solution allows businesses to remotely control OS updates by enforcing version updates only confirmed by the IT admin.
Various standardization bodies were established to help develop, oversee, and manage OTA. More recently, with the new concepts of Wireless Sensor Networks and the Internet of Things, where the networks consist of hundreds or thousands of nodes, OTA is taken to a new direction: for the first time OTA is applied using unlicensed frequency bands (868 MHz, 900 MHz, 2400 MHz) and with low consumption and low data rate transmission using protocols such as 802.15.4 and Zig Bee.
It’s tough managing a fleet of devices when your employees are on different OS versions.
Some older versions are vulnerable to security issues, yet the latest one may not be optimized for your in-house software.
Often, a carrier will send a broadcast SMS text message to all subscribers (or those using a particular model of phone) asking them to dial a service number to receive a software update. Option 1 updates phone configuration, option 2 updates the PRL.
Similarly Voitel Wireless and Straight Talk, which both use Verizon network, use *22890 service code to program Verizon based wireless phones.Motes are often located in places that are either remote or difficult to access.