PTT

I am not sure that I understand PTT. As I get it it, it is like the walky-talky that my kid uses. It is always on and so you are always (ready) listening to the other side. Something gets send if you push the talk-button, hence PTT. However when nobody is senden nothing has to happen on the network. It reminds me of Instant Messaging, where you always listen in to the other side and where the sender has to do some explicit action. The question remains why people use a walky-talky. I guess the main reason is (was), better coverage than mobile. But if the coverage is equal, is there still a reason to use a walky-talky? Instant connection could be a reason, but this could be handled reasonably with a mobile (speed dial and automatic answer). However with a mobile data network it will be even easier. You can have a two way and always open voice connection (ambient sound). And not just when people push a button.

So why do people want PTT?

{inspiration Eric Lin @ The Feature]