How to make a conference of 3 people in cloud telephony?

Question

Telephony

Hello. Tell me, is it possible to make such a setting and with what telephony is it possible to do this? We have two operators, for example 100 and 101. The client calls, the call is accepted by operator 100, and at the same time operator 101 should automatically connect to the call. And at the same time, operator 101 should not hear what operator 100 says, but can only hear what he says customer. Is it real?

Answer 1

I have not seen such a service from cloud providers.
But you can do this yourself on asterisk, often used to help novice managers.
https://asterisk-pbx.ru/wiki/asterisk/app/chanspy