Incase the word hasent gotten out you can reset your Lync Polycom handset back to defaults. We ran into the need to do this in our test enviroment where we distroyed the lab but the phones where looking to connect to the old pool.
this will work on the following handsets
the Aastra 6721ip, Aastra 6725ip, HP 4110, HP 4120, Polycom CX500, Polycom CX600, and Polycom CX3000.
A Hard Reset is triggered by holding down * and #. A Factory Reset is triggered by holding down 4 and 6.