Almost all steps in this example session are optional. But even clients that do everything are still more efficient than most other chat apps people use: https:

Almost all steps in this example session are optional. But even clients that do everything are still more efficient than most other chat apps people use: https://blog.lewman.com/internet-messaging-versus-congested-network.html https://blog.lewman.com/internet-messaging-versus-congested-...