Hi..anyone farmiliar with a Dees CM-10 call monitor programming, on a Mics 7.1 system. The CM-10 is connected to the system, but when you try to call monitor a line, by entering a COS password, then intercom 7, and then the number for the line i.e 11, I get a message Invalid number...there is no programming info on the CM manual,so seems we need to do some programming on the MICS, Thanks in advance for your relpies.