Ways to meet others on computer

[Thrillerman]

How many different ways are there to meet people on computer (e.g. Skype and Microsoft Teams). But how many are there and how do they work?

[veeg]

Hello

Zoom

[Bruce]

3 of the current popular ones have been listed, but there are, as you’d expect, a while lot more.
horses for courses.

but just like a phone, they require the other party to also have the same system.
you just can’t ring or talk to someone unless they also have the same system setup on their end.