I agree with others about the "upgrades". I have set up a 302 that was new in box, it worked kind of okay, decided to "upgrade" to their newest version. It broke everything, no error lights. I had no dial tone, bluetooth wouldnt work, unit kept rebooting when calls were attempted. The ONLY thing I did to fix it was reinstall an older version (5859), that is the ONLY change made. Now, I have a dial tone, the 302 works, calls are fine, bluetooth works, no rebooting issues. So the question stands. What about those who arent allowed to revert to an older version? What are they to do with the trashed "upgrades" that cause them to need to pay for tech support to "fix" the fix? I am lucky to be able to reinstall older versions, all units should be able to do this. It is obvious that Polycom DOES make mistakes with version roll outs.