Is there a free PBX for android with saving the number?

Question

Telephony

In general, I would like to make it so that when a call is received to a beeline or mts number (Android with 2 SIM cards), after a certain time, these calls are forwarded to the numbers I defined (1-3). There are virtual PBXs but they do not save the number. Maybe there are programs for android that allow you to do this, but not using ip telephony, but for example creating a "conference"?

Answer 1

You need a "cloud", "virtual", PBX
. And you need to call the number of this PBX, then forward it. you can use any number for PBX, even mobile