BLF
The busy lamp field (BLF) next to a speed dial button usually uses multi-colored LEDs to indicate whether the assigned extension is reachable, busy or offline. An incoming telephone call on this extension is signaled by flashing.
The busy lamp field (BLF) next to a speed dial button usually uses multi-colored LEDs to indicate whether the assigned extension is reachable, busy or offline. An incoming telephone call on this extension is signaled by flashing.
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