How easy is it to make a call from a website to phones?

Question

Telephony

Enter the phone number in the form and click call. We speak with a person through a microphone.
Tell me the services that are easiest to use to solve this problem.
Naturally, I do not expect free calls. The simplicity of connecting such a function is important.
It is also important that the history of conversations be saved.
I understand that it is implemented through ip telephony. Read about Asterisk. But as I understand it, its installation is very expensive. + you need to buy special equipment. And I just need the ability to dial a number from the site and call it.
Thanks