I’ll tell you about one service, using which you can make a call with a phone number change. That is, you can specify the number anyone and the person receiving the call will see your fake operator number, not the real one.
The advantages of the service include the fact that dialing can be done through a browser or via mobile. But it seems to me that the browser is still a priority.
The catch here is only one thing: only the first minute will be free, this is done specifically so that you can evaluate the service. But who said you can't use Tor or VPN? How to change number? 1. Go to the site "https://caller.one/"
2. Turn on the service of number substitution
3. Record of conversation can be disconnected
4. Add phone numbers to the base for dialing, you can import the excel, you can manually drive
5. Everything, you will have a minute to talk. After that, you can clear the cache in the browser, or use Tor, forgetting about the fuss