I have a Nortel IP Phone 2002 working with asterisk with chan_unistm. Calls can be made and received on the phone no problem. The issue is with the display, when I am dialing I do not see the numbers being dialed. I have seen some talk about the display size being an issue with the 2002 phones. I have seen some stuff about patches but I am not sure which to use or if they still work.