Friend,
First of all, you need upgrade the codec, but you don't need "cmterm-tcnc5_0_1.cop" to do that, you need download "TelePresence Software-TC5.0.1 (s52000tc5_0_1.pkg), then upload it to the codec and put the required release key (you can generated the key into cisco.com/go/license page). So, you codec shall be in the latest version.
Then you can go on and register your codec to CUCM. This archive "cmterm-tcnc5_0_1" must to be installed on CUCM.
Regards,
Paulo Souza
Paulo Souza
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