Look on the tonido site and see if the CDR document is out there. There is a document floating around here somewhere that is a slide show about 3/4" thick that has all the information about setting up CDR on the 4000. I'm not sure if I have it in an electronic format, but I know it has been posted here before. A search of Hicom 4000 CDR might be helpful.
Don Bruechert, Voice Comm Analyst II
CareTech Solutions @ Holy Family Memorial
Manitowoc, WI, USA