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Norstar BUSY LAMP FIELD BLF NT8B91

Add a Busy Lamp Field (BLF) to the M7310 and see the status of as many as 24 telephones. This is excellent for receptionist and administrative assistant positions that need to know whether a phone is idle, busy or on “Do Not Disturb before transferring a call.

The Busy Lamp Field creates an attendant position to monitor the status (busy or idle) of internal autodial keys programmed onto the dual programmable buttons of the M7310 set to which it is attached. No additional power or wiring is required. The BLF unit is Compatible only with M7310 telephone.