I want implement android custom native dialer app that should be default app to handle incoming and outgoing calls.
I have done for basic call with hold/resume features by making my custom dialer as default phone.
Now I am adding features like call transfer and conference to my app. But unable to do so with my app.
I am new to android. Above basic app done with help of some refernce.
Please help me implement call transfer and conference features in my custom native dialer app