Hi, I am looking for a cmdlet in EMS or a place in EMC using which i can actually find out how many number of unique devices are connecting to Exchange. This is required for estimating and budgeting the number of CALs that are required for the server. Any other inputs are also welcome to find out the number of cals that are currently being used. Thanks in advance. Cheers :)

Hi, Are you looking for Exchange or Windows CALs. If it's Exchange then it's about the number of mailboxes not connections CALs.

Hi , I want to know how many Device CALs are used for Exchange server. How to find how many unique devices are getting connected to Exchange server ? Thank you

Hi ! I guess you're looking for this : in EMC click in left (top) pane at Microsoft Exchange On-Premises (exchange.yourdomain) then right pane --> Collect Organizational Health Data then in Organizational Health tab (mid pane) --> Organization Summary good luck Dominik

Merge due to duplicated topic from the same customer. Your understanding would be appreciated.Fiona

Hi, To monitor how many users are connecting and the user type, use Microsoft Exchange user monitor tool. for more information, see http://blogs.technet.com/b/exchange/archive/2005/04/06/403409.aspx. If you have any further questions about licensing, please use the contact information in here which would be the best place for seeking the answer. Just for your information, you may find the related CAL information from article below: Exchange 2010 Client Access Licenses (CALs) http://www.microsoft.com/exchange/en-us/licensing-exchange-server-email.aspx#Exchange2010CAL Fiona

Well, I found info about Organization Summary : http://social.technet.microsoft.com/Forums/en-US/exchange2010/thread/8a5c8c9e-3760-47a6-99cf-f9845f696d0b/ It seems to be not perfect tool as I thought before :(