10 years ago, I was part of the Nextel account team at Motorola. We introduced a nationwide “push to talk” feature in the phone. This allowed for instant communication to a limited set of individuals. Soon afterwards, Verizon introduced a similar feature. For a short period of time, “push to talk” was a must have in the market.
But where is push to talk today? Maybe an APP? It has been displaced by text messaging.
So, when you are designing a website, or communicating over various social media tools, think about what is the benefit from what you are providing.