I have a CTX 100 system and am running WinAdmin version 2.22. We have 4 cordless phones connected to a RSTU card (DN 25-28) and would like to change one of the extensions (28) to use a DKT3010-SD instead of the cordless phone. I have been told that changing the port to a "2000 series" would do it, but that was just off-hand advice. Can someone please tell me how to get the DKT3010 to work even if we have to give up some of the display characters?