I already ordered a SIM card for me. But the problem is I don't use international calls. And more precisely I do this very rarely. tell me if there are tariffs for each country. ?
tariffs in every country I have not heard and they want a global project with convenient international calls.
if you use telegram bot that the rates will be different for each country and you will be most convenient to use.
I also tested this project for me and it all looks quite in demand. I'm just about to buy some tokens.
I also now use their services. But I think if there was a client application for PC as Skype it would be more convenient.
On PC you can just use IP telephony or telegram bot. It will be the most convenient.