Aastra 677x: Extensions and Accessories Key Extensions
64
The number of key extensions connected to a system telephone (up to three) can
be set in the Configurator of the OpenCom 100’s Web Console (in the menu
Telephony: Ports: Upn or Telephony: Devices: VoIP Phones). Here the keys can
also be programmed as call keys or assigned functions or destination call
numbers. Users can change this programming as required. The maximum distance
between the connecting socket that the telephone/key extension device combi-
nation is operating through and the OpenCom 100 must be less than 1000
metres. You will need a plug-in power supply unit no. 4516000 (in Britain operate
only the AC adapter with the part no. 4516001) to provide power. The power
supply unit is plugged into the last in the series of key extensions.
Key extension … … with the features connectable to a sys-
tem telephone
Aastra M671 – 36 keys with LED indicator
– Labelling on label strips
– Aastra 6773
(OpenPhone 73)
– Aastra 6773ip
(OpenPhone 73 IP)
– Aastra 6775
(OpenPhone 75)
– Aastra 6775ip
(OpenPhone 75 IP)
Aastra M676 – 20 keys with LED indicator
– 3 keys with LED indicator to shift
levels; enables programming of 60
storage locations on each key ex-
tension
– Labelling of the keys over the
display; each key is assigned to a
display line
– Aastra 6775
(OpenPhone 75)
– Aastra 6775ip
(OpenPhone 75 IP)
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