FB 7270 and Gigaset4000micro no call list

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Hello,

according to the overview list of the Dect of telephones, which function perfectly at the FB 7270, the 4000micro is to convey also the call list.

I get the calling No. at my MT. indicated, however the call list is not active over the letter symbol.
My second MT runs therefore over the old basis station at the Fon2 haven - here the call list functions (administers over the B-station).

Can someone say to me, what I must still change or adjust?

Thanks for the info.!