Grant, In retrieving the CALS, If you purchased them from us you would have recieved an email with instructions to MS eOpen website to retrieve the license #. With the License Wizard, just state the license type and how many you have.  Windows 2008R2 doesn't have any enforced licensing , they go off the honor system now.
New to servers but been around computers for a long time.   I have a new Dell Power Edge with 5 CAL with it and have purchased a further 5 CAL's (Server 2008 R2 Standard)   I have activated the RD license server and am trying to activate/install the CAL licenses.   In the Install license wizard the first question for the CAL's purchased as part of the OS are they; "License Pack", "Open License", "Select Licence" etc   and Secondly were can I find or access the CAL license codes or authorisation and license number (depending on what type of license I have)   This should be easy and perhaps it is but I cannot find anything on the CAL document that came with the OS and on the extra 5 CAL there is only a tracking ID number.   Please if anyone can help me out on this, pretty basic step.  (spend sometime on google and have not found anything of help)   Grant
Newbie be nice - New to Servers - setting up CAL licenses How to find the 
License code