-It supposes a significant saving of money in comparison to other proposals that realize their same function.

-It gives the possibility that not only two people can participate in communication, but many more. You can do “meetings” in a group.

-VoIP devices can be used anywhere in the world.

Cons of Voice over internet protocol -You can present failures at some time during the communication, and that translates into cuts.

-It may happen that the connection does not reach one of the two parties.

Know more: https://www.computertechreviews.com/definition/voip/