What is OTA?
Over-The-Air or OTA is the wireless technology utilizes to: communicate with the SIM card download the applications to the SIM card handles the SIM card without being linked physically to a card. In summary: OTA or the Over-The-Air is the technology that renews and changes the data in a SIM card without the need to reissue it. This is also referred as the Over-the-Air terms. It is both critical for the carriers and the subscribers. How do OTA works? OTA allows the Network Operator to initiate the new SIM service or remotely modified the contents of the SIM cards that are already in the area cost-effectively and rapidly. The OTA will be based on the server/clients architecture wherein there are the operator back-end systems (application server, customer care, billing system, etc.) and in the end, there is the SIM card. The back-end system of operators transmits service requested to the OTA Gateway (or the OTA Platform), that transformed a request into the Short Messages and forwarded