[asterisk-users] KEY SYSTEM, Intercom

[hbk]

Hi,

I am still dreaming of replacing our now 16 year old Panasonic with *!
I have played with * for many years but are uncertain how to get
"Panasonic" functions like:

KEY system buttons/LED or LCD soft keys indicating outside line usage. 
Intercom function that allows one way talking true speaker on all phones
in a group.
Intercom function that allows two way direct speaker phone conversation
from approved phones without receiver having to touch his phone.

Any suggestion on Phone and how to implement?

Thank you!
HB
Norway