> Hello's an established communication protocol that allows the speaker to verify the target is available, listening and ready to initiate a conversation Which

> Hello's an established communication protocol that allows the speaker to verify the target is available, listening and ready to initiate a conversation Which isn't relevant at all in asynchronous communication methods like messaging. > If you gotta call someone for support, do you say hello and wait for them to say hello back or do you just unload your question Phone calls and messaging are different.