How to make a phone number that can look at the number of an incoming caller?

Question

ATS

Good afternoon.
Task: to make such a phone number that can look at the number of the incoming subscriber and, if this number is on the white list, then forward it to another number (without ending the call).
What is the easiest way to do this?

Answer 1

With the help of Asterisk or FreeSWITCH the task is solved very simply.
Surely this is feasible on other software PBXs.
As for virtual PBXs, do you mean SaaS solutions? Then you should contact technical support with this issue.