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the application just waits till the system either finds a connection or reports failure.
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Posted: 2007-02-21 10:12:15
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@ Tail
I have push email working for me via wifi on my P990. To set the scene, I have my own domain, on which I have a mailbox that I access via IMAP on phone and on laptop (using Thunderbird). My mailbox there has IMAP IDLE, which is essentially push email for IMAP. None of these things are connected to my network provider (Orange UK).
When I'm on the move, my mail is pushed over GPRS/3G. When I'm at home, if I do a get/send mail and make it use wifi, then mail will continue to use wifi for checking, and push email will work as expected. I do have to explicitly force wifi to get that to work -- once push email is working on 3G, it won't automatically hop to using wifi even once I'm at home, bathed in wifi. Similarly, if I move from home to outside, it won't switch to using 3G automatically.
I've recently debranded my phone, and I seem to think that the Orange firmware I was running didn't like push email using IMAP IDLE very much. It seems fine now.
Hopefully that gives you some optimism that it can work. I saw @masseur's response, so hopefully I'm not saying anything incorrect here -- if I am, it's certainly not intentional. If you are collecting Three mail, then they may have some strange settings forcing you to use their network. As I said, my domain is my own, so I'm not subject to those kinds of conditions.
A friend and I did a few tests on IMAP IDLE a while ago, so this link may be interesting in this thread:
http://feetup.org/blog/mobile/Easy-Push.html .
I may be open to setting up a test mail account for you to test -- PM me if you're interested.
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Posted: 2007-02-21 13:49:08
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I have an exchange server setup using the activesync push email and p990 connector. As long as you specify your connections in order (as mentioned above) in your connection group, it will work. The downside is that if it looses the current connection it will work its way back down the list. ie if you are on wifi and then move out of range, your phone may switch to 3g or gprs which may be lower down your preferred list, however when you go back in range of your wireless it won't switch back unless the connection is dropped.
Personally I'm finding that the push email/dataviz connector is somewhat buggy /bloated and drains the battery. If you use it alongwith wifi you'll be lucky to get 1/2 days use out of your phone.
hth
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Posted: 2007-02-21 20:53:13
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I was pleasantly surprised using normal [non-Blackberry/Activesync] push email over a day, although with fairly light other phone usage. The battery dropped by about a third.
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Posted: 2007-02-23 10:04:26
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I think there is some confusion here about how push email works. There are different types of push email services (blackberry is the most famous one).
There are two ways this works:
Operator Based
Example services: BlackBerry, GoodLink, Seven
In this scenario, there is an intermediary server that is usually on your operator's network, which polls your email server at your organization, formats the messages, and sends the push email to your device. With Seven, there is actual software that you install on your end (next to your Exchange or Lotus Domino server) which will poll the server, and then connect to your provider's network and push emails to you.
Important thing to note about these services is that they are almost always locked to one connection type. Usually, if the service is provided by your operator, the connection type is locked to GPRS.
Non-Operator Based
Example services: ActiveSync, IMAP IDLE
In this scenario, your device connects directly to the mail server and polls it for information. There is no intermediary server/service; you can use any means of connectivity (GPRS/Data/WiFi) to connect to your server and download your messages.
For ActiveSync, it is recommended that you use an 'always on' data connection like GPRS to ensure proper push functionality. Obviously, if your device is not on the network, then it can't be pushed anything.
Both methods employ a so-called "heartbeat" signal, which is a form of ping that tells the server that your device is available on the network for direct-push.
Of course the 'normal' email services fall into this category as well (ie, normal mail POP3 accounts).
Hope this helps people, as it took me a while to sort this out myself.
_________________
Burhan
Nokia 3300 > P910i > K750i > M600i & JASJAM
[ This Message was edited by: fyrestrtr on 2007-04-26 10:22 ]
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Posted: 2007-04-26 11:20:59
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One other thing, at least on US, is that for any kind of push email, you will need to get from your operator a separate
data plan. On Cingular, this is another $40 a month.
Normal GPRS connections would not work for push email.
Even though you can get access to POP3 email (via a pull method), access to Blackberry and ActiveSync services must be done via
data plans.
Don't know why. I take it it's a scam so they can make more money. Or maybe there are some real differences when it comes to data packets and transmission and an always on connection.
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Posted: 2007-04-26 17:01:42
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my push-email with active sync works fine with Wifi, no issues, just have to set the Wifi-connection with higher priority than mobile-network connection
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Posted: 2007-04-27 18:40:27
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