Important: Only available for operation on the PBXs COMpact 3000 analogue/ISDN/VoIP, COMpact 5010 VoIP, COMpact 5020 VoIP, COMpact 4000, COMpact 5000/R, COMpact 5200/R, COMpact 5500R and COMmander 6000/R/RX.
Important: If you must prefix e.g. an exchange line access number when entering/selecting a phone number, depends on the exchange line request (automatic, direct exchange line telephone, internal telephone) that was configured in the PBX (see Advanced Information of the PBX).