Push email and GPRS

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I now have the push email working through mail2web.com, but the phone wants to be constantly connected to GPRS and seams to sychronise 4 or 5 times an hour even though no new emails have been recieved.
Is this normal behaviour as i'd rather it just dial GPRS and synchronise when a new email arrives.

Thanks

James

With the push email, the GPRS session will stay open.

As far as sync'ing when there is nothing new, that is NOT normal. I have gone hours without sync'ing (due to no mail, contact changes, or Calendar changes), then when a new mail comes in it still gets it right away.

There was a good explaination of how the push email works via a technet blog... I think this is the link, but can't get to it right now for some reason. It's a good read... http://blogs.technet.com/exchange/ar...03/424028.aspx

That's right - for Direct Push the GPRS connection will be permanently up, so that the server can flag to the handheld when a new message comes in. If the connection is dropped (ie. passing through a no coverage area), then it's up to the handset to re-establish it, and it does this with a timeout of 15 mins. Maybe this is what you're seeing. The other explanation is that the router/firewall at the server end is killing SSL sessions after too short a timeout. I believe the Microsoft recommended timeout is 30 mins. Hope this helps. br

Thanks for that guys, i suppose GPRS doesnt run the battery down too much. It still seems to be syching a couple of times an hour with no change to my exchange contents.

have you got your settings on "when items arrive" or do you have it set to periodically check? particularly in off peak times.

open activesync on the device and check the schedule.

Direct Push 'Heartbeat interval'

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Using Direct Push on Tornado/imate sp5, the gprs 'heartbeat interval' can be set in the registryHKCU/Software/Microsoft/ActiveSync/Interval, as well as MinHeartbeat and Max Heartbeat. I've got mine set to 1800(30mins) for Min and Interval and 2700 (45 mins) as Max.
Most Servers run between min8mins and max 45mins, so your device should 'ping'or be 'pinged' by the server within this time frame.
I'm using 4Smartphone. Works like a dream. Heartbeat is about 3kb/hour, ie 2 beats an hour
I tested Mail2Web, and the heartbeats from the server come at a rate of 1 kb per minute 60kb/hour ! ouch! regardless of my device settings, i mailed them and they're looking into it !
good luck

I've done a bit of reading on the mail2web service and it seams that is the problem. Some users have been finding that the download costs have been huge because the heartbeats have been coming so rapidly. I've stopped using push on mail2web on the phone. I'll have to wait until work gets its certificate sorted and i can use my exchange box there.

Thanks for the replies