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6 Programming - manual
Activating the bus telephone
Activating the bus handsfree telephone
1 Activating the bus telephone
Bus telephones are set to the pro-
gramming mode using the light
button.
The receiver must be off the hook.
Repeated short tones are audible in
the receiver of the bus telephone.
These indicate that the programming
mode is active at the BNG 650-...
1 Activating the bus handsfree
telephone
Hold down the light button for
4 sec. The storey call can be heard
and the muting button starts flas-
hing. The bus handsfree tele phone
establishes the speech connection to
the door station.
2 Hold down the light button for
4 seconds. A protracted acknow-
ledgement tone is audible in the
receiver as confirmation. The bus
telephone is now in the program-
ming mode, the muting button is
flashing. Do not replace the receiver
until after programming has been
completed at the bus telephone.
The bus handsfree telephone is now
in the programming mode.
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