I have heard the Avaya SIP conference phones take extra effort to program (from someone who was doing it on a job site while I was setting up regular phones.) Are they better/worse than the Polycom? If I have a digital solution, it seems to me the wireless Polycom would be a better choice using analog ports than using the Avaya ones unless Avaya is that much better - does anyone have any opinions on quality differences? Thanks in advance.