So I am trying to replace some old Spectralink i640 phones with newer 8020 phones, and I am a little confused... Do I have to actually make the slnk config files and load them in the 3300? It is vaguely mentioned files need to created for the 8020 phone in the configuration guide from Mitel's website, but there isn't any real detail on what to do with them and how to move them to the controller. Anybody have a little more insight into this? I am very familiar with SIP and understand configuration files and how to edit them, just not sure if they are really needed here or what to do with them. Thanks.