I am looking to upgrade a bunch of our IP phones. We are currently running SPA922, 7912g and 7940 with a few pap2t. All this is going to Trixbox 2.8 (although i'm seriously considering Elastix). We are running DVX with a couple of backup lines with Orcon's digital voice service.
The 7912g have to be the worst phone we have. They constantly cut out (I think its background cancellation gone wrong). The 7940 are OK but no power over ethernet. The SPA922 are pretty good except they randomly restart sometimes. I am looking for something entry level that can be centrally provisioned. preferably with an LCD screen that allows call history, caller ID etxc. would be really good.