`` LetsCall.Me '' free service that allows you to receive calls anonymously without exposing your phone number

This free network service called “LetsCall.Me” fulfills the contradictory desire of not being able to expose your telephone number on the net but wanting to be contacted by telephone. It is possible to receive a call while hiding your phone number. It is also possible to block opponents who make prank calls.

Details on how it works are as follows. Please use it at your own risk.
Anonymous phone number-accept calls anonymously
http://letscall.me/

Looking at the terms, it is run by a company called Levine Technology Solutions in the United States, and the mechanism is as follows.

・ Create a page called 'http://letscall.me/~~' with your favorite name
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・ Instead of telling your phone number, tell this address “http://letscall.me/～～” or display it on the Internet
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・ 'People who want to call you' enter their phone number in the input field of 'http://letscall.me/~~'
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・ LetsCall.me first calls 'person who wants to call you'. For this reason, the “person who wants to call you” cannot spoof the phone number.
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・ You will receive a call with the phone number of the person who wants to call you

Since it seems to be a mechanism, I actually tried it.

First enter your favorite name from the top page and click the button

Uncheck all, enter your name, email address, password, phone number and click 'Create Page'

Then, such a page is completed. All you have to do is tell me the address of this page. If you want to make a call, enter your phone number in this input field.

However, this time I actually made it, but I didn't make a phone call. Probably because it is an American service, the phone number will be treated as an international call. Will there be similar services in Japan over time?