[JoeAltmaier]

I'd go further. If its urgent, I'll chat or text. If its complex, I'll call.

I'd scatterplot all these forms of communication against latency and fidelity. Phone is lowest-latency and highest-fidelity (except for in-person of course). Email is high latency and high-fidelity. All the chat/text/twitter stuff is lower latency and spread across the fidelity spectrum.

They all have their place. I hate it when someone mis-uses them, for instance calling me and leaving a message. Phone is low-latency and high-fidelity; a voice message is the opposite corner (no ability to go back-and-forth; I won't see it for hours/days if at all). Voice mail is the worst possible fallback for a phone call.