Hi,
The DECTsys 2200Cordless TS, this is not a BT supplied piece of kit. We do not believe that you can use anything but the system cordless and desk tele., which may be why you cannot access CLI etc, if you are using different handsets.
We no longer provide any 2 line systems of this nature as Featureline has all but replaced.
Sorry for any inconvenience
Regards
Andy
BT Forum Moderator
