We have an Avaya IP Office v2 rls 11 and would like to place a 9508 phone outside in the lobby to be used only to page a set of employees inside, mainly for delivery people to let us know they're out front. I don't want this phone to be able to make or receive calls or allow anyone to access features, I guess. I've already created a Hunt group with the 3 employees and set up a button to page the hunt group, which is working fine. But I can still make calls out. I also set the extension number to one we don't actually own so there's no incoming call route to it. I tried to take the appearance buttons out and just have the paging button but I got the Button features invalid error on the phone. Can anyone let me know if this is possible?