Android Question A telephone call over the Internet similar to WhatsUp or Viber

[Lakhtin_V]

Hi, I ask for advice on how to make a phone call between two users of the application via the Internet. Or is it easier to program the use of WhatsUp Or Viber services?

 

[LucaMs]

Hi, I ask for advice on how to make a phone call between two users of the application via the Internet.

Never used and I don't know if it still works, but searching here for VOIP:
https://www.b4x.com/android/forum/threads/android-sip-voip-tutorial.13088/#content

 

[Erel]

SIP still works.