I downloaded this license for unity express 2.3 to be compabile with CUCM 4.2:cue-vm-license_12mbx_ccm_2.3.4.pkg but the size is only 5KB.Is it the right file ?
Just to add a note to the great help you have received so far from my friend Tommer and Arvind. The License file is really just a text file so no worries on the size. I just wanted to verify that the one you have downloaded is for 12 mailboxes only (just so you know :)
Hope this helps!