<div>
I looked into this. &nbsp;I'm sure there is something we don't know. &nbsp;I have 4.1, but to go to 5.x it would be a lot of money. &nbsp;So they have an Express release that would offer as much as 5.x for free? &nbsp;I read up on it and decided against doing the installation. &nbsp;There would be obvious down time that would have to be dealt with after hours. &nbsp;Minimal down time would be a few hours still.
</div>


I looked into this.  I'm sure there is something we don't know.  I have 4.1, but to go to 5.x it would be a lot of money.  So they have an Express release that would offer as much as 5.x for free?  I read up on it and decided against doing the installation.  There would be obvious down time that would have to be dealt with after hours.  Minimal down time would be a few hours still.

<div>
<div class="content wysiwyg-content">
I just found out about the Blackberry Enterprise Server Express option. &nbsp;It appears to do all I need and it is free. &nbsp;I currently use BES and have 10 user licenses. &nbsp;I want to discontinue my BES installation and convert to BES express so I can offer to more than 10 users (we have several folks with Blackberry's using the OWA setup but it does not sync calendar or contacts). &nbsp;I read that a BES and BES express cannot exist in the same Windows domain. &nbsp;I am not going to set up another Domain. &nbsp;So my question is does anyone have any instructions or advice on how to perform the swap to BES express with minimal down time for the existing Blackberry users.<br />
<br />

</div>
</div>


I just found out about the Blackberry Enterprise Server Express option.  It appears to do all I need and it is free.  I currently use BES and have 10 user licenses.  I want to discontinue my BES installation and convert to BES express so I can offer to more than 10 users (we have several folks with Blackberry's using the OWA setup but it does not sync calendar or contacts).  I read that a BES and BES express cannot exist in the same Windows domain.  I am not going to set up another Domain.  So my question is does anyone have any instructions or advice on how to perform the swap to BES express with minimal down time for the existing Blackberry users.



Need to Swap from BES to BES Express

The BlackBerry operating system is proprietary; releases beginning with BlackBerry 10 include support for applications written for the Android platform. As such, developers can use almost any programming language that can be used for other smartphones, including Java, Adobe Air, .NET and HTML5/JS (via an app packaging framework like PhoneGap) .

BlackBerry Programming

BlackBerry is a line of wireless handheld devices and services designed and marketed by BlackBerry Limited. BlackBerry devices can record video, take photos, play music and also provide functions such as Web-browsing, email messaging, instant messaging, and the multi-platform BlackBerry Messenger service, and specializes in secure communications and mobile productivity.

BlackBerry

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.