How to add new field(s) and records to the call logs(call history) database?

Question

I am trying to make a VoIP application and I wanted to know if it is possible to do the following with the Call Logs content provider -

1. I want to add new Call L

Answer 1

From a standard SDK application, you cannot directly extend or modify the CallLog database or content provider. For an SDK-based VOIP application, you should maintain your own call log.

If you are writing your own firmware for your own device, I am sure there are ways you can modify the call log database.