I have call manager 5.0 running and have some extra DLU's. I don't know how we have the extras they were already there when I took over. I have never added a new phone to call manager. I've added and removed the ones we already had. We have just purchased 6 refurbed 7960's that were supposed to come with the licenses. When I add the phones my licenses decrease by the 4, the number they use.
I have looked all over Cisco's site and have been unable to find how DLU's are added. The phones that I purchased only came with the hardware. Should there be something else with them? Should the license upload from the phone to call manager automatically?
My main question is: How are DLU's added to call manager 5.0?
This is actually an excellent question :) With the release of CCM 5.x the licensing for IP Phones changed. For all 3.x and 4.x versions the CH-1 (Channel) License was used and now phones use DLU's (Device License Units) The "Station License" has been replaced with the DLU (Device License Unit) in CCM 5.x and above, so the licenses you received with the refurb 7960's won't work here sadly.
Step 3 You must enter the MAC address of the Cisco Unified CallManager server that you are requesting the licenses for, and a valid E-mail Id. You must enter the number of nodes and phone units that you want licenses for.
Note You can determine the number of phone unit licenses that you will require for each phone type using License Calculator in Cisco Unified CallManager Administration. See the "Calculating License Units" section on page 24-1.
Note The license file is uploaded into the database, only if the version specified in the license file is greater than or equal to the Cisco Unified CallManager version that is running in the cluster. If the version check fails, an alarm gets generated, and you should get a new license file with the correct version. The system bases the version check only on major releases.
Use the following procedure to upload a license file to the Cisco Unified CallManager server with the matching MAC address that is provided when requesting for a license file. For information about obtaining a license file see the "Obtaining a License File" section. The Cisco Unified CallManager server where the license file is loaded takes on the functionality of the license manager.
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