Connect to a Desk Phone with Remote Handset Lifter
A remote handset lifter manually lifts the handset from the receiver to make or answer a call. To connect a remote handset lifter to a desk phone, please refer to specific remote handset lifter documentation.
2.5CONNECT TO A BUSY-LIGHT INDICATOR
A remote busy light indicator connects to the port marked 
on the base, and indicates to colleagues when the Jabra PRO 9450 is on a call.
JABRA PRO 9450
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