Hi Folks,

I'm absolutely new to this whole Blackberry craze and I'm really at a loss right now.

I'm working at a small IT-Service Shop, we primarily deploy MS Windows Servers and Clients, including Exchange, SQL Server and so on.

We are using several Windows 2003 Servers in our office, and are running MS Exchange Server 2003.

My boss has gotten hold of a used Blackberry 8700G without a SIM-Card.
He has a SIM-Card of the german carrier E-Plus, which he currently uses in his cell phone.

He wants to use this Blackberry 8700G to access his Exchange Inbox while he's on the road.
I already heard that the Blackberry Enterprise Server Express is available free of charde from RIM, with one CAL included.

I already registered for the Software and downloaded it yesterday.

So, could I just put the E-Plus SIM Card from my boss in the blackberry and configure the BES to push the Exchange Inbox of my boss to the 8700G?
Or are there any other prerequisites that need to be taken care of?

Does the BES work at all with E-Plus SIM cards? Does he need a special contract with EPlus?
Any hints on where to start would be greatly appreciated!

Thanks in advance,

Dominik