I have a customer that uses all 5420s, aprrox 18 sets, and avaya had to create a custom build for them to work properly. The issue we were having was when all the phones in a hunt group would ring it would bring the IPO to its knees. I know there once was a limitation to the amount of 5420s one could use in 3.1.xx. My question is, has this limitation been increased in 3.2 or 4.0 ? I am having a hard time finding a specs doc on this limitation. Thanks for any insight into this issue.