Quote:
Originally Posted by borked
Go on, I'll bite...
Riiiight, and what is this active monitoring of the email server? A ping perhaps?
Oh, guess what - Exchange email does just that - if the device hasn't heard a ping from the server in the last X minutes (configurable), it pings the server, because that means the IP address of the client has changed. How is this different, from RIM's almighty offering?
hahaha - you haven't looked into z-push have you?
It is exactly that - it polls the imap server every X seconds (I have it configured to 5 seconds, cos my server is beefy and can handle all that shit), and then when a state change is observed (ie email received) it recouperates it and pings the client who grabs it.
How is this different from your description of a true push server?
Firstly, it takes a lot of power (relatively speaking) to fire up the 3G connection, locate the tower, make the connection, then check (no email) power down, than it does to maintain an active 3G connection. If I was on a train for example, then push would be shit and as bad as pull as the phone would always be polling to try to find a tower, but outside of that example (or flying along a motorway), you will always be polling a tower from your provider nearby, so no searching needed.
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Dood, are you serious ? You claim to be some sort of server admin but can't seem to grasp a few simple concepts.
First of all, BES server and Exchange server are usually on the same INTERNAL LAN. That means that the cost of BES server polling Exchange even every second is close to 0, as opposed to your device polling Exchange through the airwaves every X seconds.
Second of all, I don't even know how much more clear I can make this. Activesync maintains an open connection to Exchange/Z-Push, Blackberry doesn't.
Maintaining an open connection at all times, isn't really push.
Having the tower contact your device and pushing information to it, IS push. The difference between these two methods is why Blackberries have a much better battery life.
End of story. Jeezus