There are a lot of question going around when it comes to OCS 2007 R2 and licensing. In this post I'll try to give an overview of which licenses are required :-)
In the end, it all boils down to three things, meaning, you may need a license for:
1. Using a client software to gain access to a service provided by the Office Communications Server (= clientsoftware license)
2. Gaining access to the service provided by the Office Communications Server (= client access license)
3. The sever offering the Office Communications Server services (= server license)
So let's have a look at these three different licenses you need...
1. Client Software License
You need a license for using Microsft Office Communicator, which is available as both a stand-alone product, and is also included in Microsoft Office Pro Plus 2007 and Microsoft Office Enterprise 2007.
If you have a valid Server License, you are allowed to use the following Client Software (you don't need to buy a Client Software license for using these Client Software programs)
2. Client Access License
You need a license for every user or every device using any of the services provided by Office Communications Server. There are two type of Client Access Licenses (CAL), being Standard and Enterprise. The choice of standard/enterprise CAL will depend on which features you want to use:
Office Communications Server 2007 R2 STANDARD CAL =
Office Communications Server 2007 R2 ENTERPRISE CAL = STANDARD CAL +
In OCS 2007 R2, you do NOT need to provide a CAL for:
3. Server License
There are two types of Server licenses in OCS 2007 R2, being Standard and Enterprise.
The following OCS 2007 R2 OCS Server Roles require a server license
The following OCS 2007 R2 OCS Server Roles, Standard Edition, can be installed without requiring a Server license for the role itself, BUT requiring a valid Front-End Server license (Standard or Enterprise) in your OCS 2007 R2 environment:
Need additional information?
Have a look at one of these links: