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- How do I use callback on my phone?
- What is a callback phone?
- How to create a callback method in Android?
How do I use callback on my phone?
Here's how it works: you dial the number as normal. Instead of giving you a ringing tone and connecting you straight away, your phone hangs up and calls you back. When you answer, you'll hear the ringing tone just as if you'd made a regular call, and as soon as it is answered, your call can continue as normal.
What is a callback phone?
Callback is a service developed for companies, institutions and organizations that have a large number of incoming calls in a shorter timespan. With the Callback function you can create phone queues so that the customers don't have to wait for their turn with the phone in their hands.
How to create a callback method in Android?
An Android activity goes through six major lifecycle stages or callbacks. These are: onCreate() , onStart() , onResume() , onPause() , onStop() , and onDestroy() . The system invokes each of these callbacks as an activity enters a new state.
