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I am working on an android app that auto-call/auto-dial 5 people and put them in conference call programmatically, The calls are GSM (local calls from my number to another 5 phone numbers)

Till now what I have studied I found that currently there is no API in android SDK with which one can merge call programmatically.

Still I am looking for solution. Thanks in advance.

Anwar Kamal
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    There is no way to merge normal phone calls. You can merge only VoIP calls. PS: I think you mean "programmatically" and not "problematically" :P – MatPag May 19 '17 at 15:44
  • lol yeah programmatically :P actually as I have mentioned that I know there is no support in android sdk but still looking for some hack – Anwar Kamal May 19 '17 at 16:02
  • it is possible by using 'InCallService' – Vineesh TP May 23 '17 at 06:01
  • @Vineesh TP Did you have some reference for 'InCallServices' ? – Nikola Lukic Oct 03 '17 at 09:11
  • @NikolaLukic: Set your app as default phone app in android phone. Then you will get all call back in extended "InControlservice'. Android Documentation : https://developer.android.com/reference/android/telecom/InCallService.html – Vineesh TP Oct 03 '17 at 09:15
  • Sorry , in my case only SIM based calls is interest for me. Is it real impossible to make more than one number : See https://stackoverflow.com/questions/20951638/how-to-merge-call-programmatically-while-other-call-is-running-conference-call – Nikola Lukic Oct 12 '17 at 12:00
  • Looks like not clear situation ;) – Nikola Lukic Oct 12 '17 at 12:09
  • Possible duplicate of [How to merge Call programmatically while other call is running (Conference call)](https://stackoverflow.com/questions/20951638/how-to-merge-call-programmatically-while-other-call-is-running-conference-call) – Stephen M -on strike- Dec 19 '18 at 15:10

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