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dicussions about Microsoft Smartphone and Pocket PC phone
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msmobiles.com_robot
Joined: 23 Mar 2004
Posts: 16777215
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 Posted: Mon Nov 28, 2005 5:55 am Post subject: Vodafone UK launches its own brand push email - with explicit support for Windows Mobile |
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New service from Vodafone supports both BlackBerry and Windows Mobile based email push. Symbian devices clearly are handicapped because although they can run RIM BlackBerry client (as Windows Mobile phones), they ca...
Read more at http://www.msmobiles.com/news.php/4606.html |
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kieranEire
Joined: 12 Oct 2005
Posts: 282
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| Posted: Mon Nov 28, 2005 1:17 pm Post subject: |
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Symbian phones can utilise push email with exchange using Blackberry enterprise server. Also exchange so called push email is only cheaper if you already have an exchange server 2003 license. Server 2003 so called push email also restricts you too the microsoft platform, exchange server 2003 and microsoft mobile devices.
| Quote: | | Users of Windows Mobile phones will be offered fixed tariff comparable to BlackBerry! |
Didn't you say it was cheaper then why are Vodaphone offering it at a rate comparable to Blackberry.
| Quote: | | the offering is the Microsoft Windows Mobile service using scheduled ActiveSync, designed for companies that use Microsoft Exchange 2003 |
This clearly shows what I have been claiming several times on this site, microsofts so called push email is actually just scheduled syncing. Many people have a feeling this is just going to be another poor implementation such as the Microsoft bluetooth stack turned out to be. |
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EJR
Joined: 18 Mar 2004
Posts: 2629
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| Posted: Mon Nov 28, 2005 8:27 pm Post subject: |
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| kieranEire wrote: |
Didn't you say it was cheaper then why are Vodaphone offering it at a rate comparable to Blackberry.
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This clearly shows what I have been claiming several times on this site, microsofts so called push email is actually just scheduled syncing. Many people have a feeling this is just going to be another poor implementation such as the Microsoft bluetooth stack turned out to be. |
Vodafone just wants to offer the same prices for both - it is Vodafone's decision. But if one has flat rate mobile data tariff then MS push direct technology is cheaper because it requires no monthly subscriptions whatsoever.
Regarding "scheduled syncing": no, it is not it. Microsoft's push email opens a socket and write to it hole time. It is really push technology and not polling or synching. |
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kieranEire
Joined: 12 Oct 2005
Posts: 282
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| Posted: Mon Nov 28, 2005 10:52 pm Post subject: |
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| Quote: | | Vodafone just wants to offer the same prices for both - it is Vodafone's decision. But if one has flat rate mobile data tariff then MS push direct technology is cheaper because it requires no monthly subscriptions whatsoever. |
No but Exchange server 2003 requires a near 3999 dollar fee for 25 user licenses for enterprise and 999 dollar fee for 5 licenses for standard. On top of this you also need to purchase devices, SIM cards, and pay a mobile service provider. Not only does BlackBerry come pre-configured out of the box, it also comes with devices, active SIM cards and, above all, an all-you-can-eat monthly data subscription with some inclusive text and voice minutes. The lower compression rates offered by the Microsoft platforms could prove a key drawback at the beginning in the absence of such tariffs.
Microsoft push email is unlikely to compare in terms of functionality and, crucially, security features with BlackBerry. RIM's key customers – large corporations – will continue to prioritise security over user experience.
What about customers who do use Microsoft exchange, or those who need support on several platforms. While the Exchange ActiveSync protocal has been licensed to Nokia, etc the it
| Quote: | | Regarding "scheduled syncing": no, it is not it. Microsoft's push email opens a socket and write to it hole time. It is really push technology and not polling or synching. |
What you are saying is the mobile device has a constant connection to the server, this does not mean polling or syncing is taking place. Steve Ballmer defined "Direct Push Technology" - the delivery of e-mail to mobile devices without any action on the part of the user. This does not however rule out polling.
I dug around a little and found this technical explanation of Microsofts "Direct push technology" which apparently comes from the Microsoft Exchange server team.
| Quote: | | The [mobile] device issues an HTTP request to Exchange, which asks Exchange to report any changes that occur in the mailbox of the requesting user within a specified time limit. The URL of this HTTP request is the same as that of other AirSync commands ("/Microsoft-Server-ActiveSync") with some differing query string parameters. The body of the HTTP request allows the client to specify those folders that Exchange should monitor for changes. Typically, these will be the Inbox, Calendar, Contacts, and Tasks folders. Upon receiving this request, Exchange will monitor the specified folders until either the time limit expires or a change (such as the arrival of a piece of email) occurs in one of those folders, whichever comes first. Exchange will then issue a response to this request that notes in which folders the changes occurred. Of course, this will be empty if the time limit elapsed before any changes occurred. Upon receiving an empty response, the device simply re-issues the request. This loop of issuing a request for change notifications, receiving an empty response, and re-issuing the request for change notifications is called "the heartbeat." Upon receiving a non-empty response, the device issues a synchronization request against each folder in the response. When those complete, it re-issues the request for change notifications. |
This sounds a lot like a type of polling to me. |
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tomrobson
Joined: 31 Aug 2006
Posts: 1
Location: London,UK
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| Posted: Thu Aug 31, 2006 4:10 pm Post subject: Vodafone UK Diret Push Does Not Work Properly |
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Direct Push to with AKU2 and Exchange 2003 SP2 does not work on Vodafones GPRS APN internet.
If you are trying to use the ActiveSync As Items Arrive schedule on Windows Mobile 5.0, AKU2.0 MSFP Pocket PC or Smartphone devices and try to connect to your own Exchange Server directly you will find that your network usage and therefore charges are astronomical and your battery will flatten very quickly.
This is due to a timeout set in the Vodafone Optimizers (like a proxy between their network and the Internet) which means that the heartbeat (a.k.a. Ping command) timesout somewhere between 60 and 90 secs by the optimizer.
On receipt of this timeout on the mobile device, another heartbeat is sent. It is similar to the article http://support.microsoft.com/kb/905013/en-us except you need to replace Enterprise Firewall with Vodafone Optimiser.
You can look at this in Performance Monitor on your server by looking at the counters under Microsoft Exchange Activesync. Specifically look at:
Total Ping Commands
Total Ping commands Dropped
Ping: Last Heartbeat Interval
In a working system you would see Dropped Pings as around 20% of the Total. With Vodafone you see more like 90%. This will depend on the number of e-mails recieved, Minimum Heartbeat Interval values and some other factors but it is pretty clear.
I have had this confirmed by Vodafone in an unofficial manner but it very difficult to get it out of them, or even to speak to somebody who knows much about it.
If you find this to be the case on your deployment please reply so that we can ensure that Vodafone resolve this issue. |
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