search for: illuminat

Hi, back in the old analog telephony days there was "digital" PBX-es and digital "system" phonesets. This phonesets have had many individual illuminatable buttons connected with extensions. The PBX can show on the buttons if some extension is ringing (blinks) or busy (constant light), and the user can transfer the call with one touch (pressing one of this button). I search this functionality in Asterisk. What versions, and what extension functio...