The question would be much clearer when use a concrete e.g,
Lets say I need to topup my mobile , I have two options
- top up using sim services [UICC with OTA]
- top up using a mobile-top-up-app (a hypothetical mobile app) [web-services https ]
my question is, what is the main advantage of option 1 over 2? what is so important about OTA?