There are a variety of flavors of e-mail from Exchange/Windows Mobile Devices 1) POP3/IMAP connections - self explanatory 2) ActiveSync - uses a scheduled interval (5 minutes is the shortest) to communicate to an Exchange source and pull down mail (kind of like POP3/IMAP. ActiveSync only lets you keep a certain amount of mail on the handheld. Usually 1 week max. 3) Always-up-to-date (AUTD) - AUTD relies on SMS. SMS bills can get REALLY expensive. AUTD sees a change in a users mailbox on the server, and when it occurs, Exchange sends an SMS to your phone. Your phone then calls into Exchange via ActiveSync method. AUTD isn't supported on a lot of devices, and there's that whole SMS issue. 4) DirectPush - This requires Exchange 2003 SP2 and Windows Mobile 5.0 with Message Featuer Pack upgrade. DirectPush isn't 100% push at it. It's basically your phone doing na Exchange over HTTP(S) connection using ActiveSync engines. Your phone keeps a constant connection open with Exchange (using Data service, which you can usually get unlimited data for $15/mo on most phones in the USA). Your phone sends pings to Exchange, and Exchange holds that request until the heartbeat expires. If there is no mail before the heartbeat expires, the device sends another ping. If there is new mail before the heartbeat expires, Exchange tells the device there is a change in the mailbox. The device then sends a message to Exchange that says "send me those changes" DirectPush doesn't offer any security except wipe handheld and password requirements. You have no way to lock down every aspect of the handheld like you do with BES and BlackBerry devices. It uses an SSL connection (if you set it up that way), so the general communication is secure, but your phone *constantly* has a data going back and forth (remember those pings) which is far less secure then the way BES/BlackBerry's work. I love some of the Windows Mobile 5.0 phones, and I offer DirectPush to users, but we do not support it. Users can screw up their phoens WAY to easily, because I have no way to restrict what they do. This means far too much support for the help desk to have to deal with. ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Dave stevens Sent: Friday, September 08, 2006 7:00 AM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Alternative to Blackberry Enterprise server Thanks guysfor all the information. And Chris, why do you have all 3? Anyway this is the deal. I have supported BES, and have implemented OMA - that is activesync exchange 2003 right? My understanding is that active synch is not a push technology but pull, you have to get on the internet to retrieve your mails? I might be wrong, hence the reason for all the research. This company wants to bring me in cos of my Exchange / messaging experience. They would be looking to implement some sort of mobile mail technology. Now I would be required to do the research and then present to the business, what in my opinion would be the best option. BES is a tried technology, but only limited to Blackberry devices, I think they are looking for solutions that would enable existing mobile phones receive and send mails. So not quite sure which way to go. Hope my situation is a bit clearer. Ta Dave Chris Wall <Chris.Wall@xxxxxxxxxxxxxxxxxxx> wrote: I have BES, Goodlink and ActiveSync for Exchange 2003 running in my environment (I am the only admin for all three of these solutions for our World Wide Org and it can be a pain in the a$$ sometimes) If you have specific questions, let me know. There are many differences between the 3, but all have their pros and cons. If cost is a concern - go Active Sync I will let you know this - Goodlink will support many device types (windows mobile and palm OS devices) BES will support Blackberry devices and now has just released support for Treo 650 devices (with Cingular). ActiveSync has a windows format that will be more familiar to your users and cut down on support calls (and most third party apps are designing solutions for these devices over PalmOS and BBerry) Also, keep in mind this - You want to investigate security/virus solutions for whichever solution you go with. Right now, most vendors only support Windows Mobile devices. Although Goodlink now offers an in-house security/virus solution for mobile devices that you can purchas. Blackberry has no third party Virus solutions (that I can find). A couple of interesting security/virus vendors to look at while considering your choice is F-Secure, Mobile Armor and BlueFire. F-Secure provides Security options, but you have to purchase a McAfee or Norton solution to work with it for Virus' control. Then you have the whole issue of deploying updates over the wire vs. requiring the device to be tethered to the user's PC for updates. Long story short - you will have to do a lot of research to get the answers you seek, and depending on your environment, you will choose differently than others on this list... Well so long for now and let me know if you have any specific questions (including why I have all three in my environment) ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Harding, Devon Sent: Thursday, September 07, 2006 3:15 PM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Re: Alternative to Blackberry Enterprise server We are currently using Good Mobile Messaging. It offers a more stable mobile messaging platform and support for more devices, including all Palm & Pocket PC (Windows Mobile) devices. http://www.good.com/corp/index.php ________________________________ From: exchangelist-bounce@xxxxxxxxxxxxx [mailto:exchangelist-bounce@xxxxxxxxxxxxx] On Behalf Of Dave stevens Sent: Thursday, September 07, 2006 12:24 PM To: exchangelist@xxxxxxxxxxxxx Subject: [ExchangeList] Alternative to Blackberry Enterprise server Hi Guys, I understand that this is not strictly and exchange question, but need your help. I am currently look at alternatives to BES, and what the basic difference between Exchange OMA and BES are. I need as much concise information on this as possible, as I am going to read thru and recommend to the business. Thanks Dave ________________________________ Yahoo! Messenger with Voice. 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