BLF (Busy Lamp Field) is a helpful feature on IP phones that displays the status of other extensions within the same network. It uses lights or indicators to show whether an extension is busy, idle, or ringing. This makes call management more efficient, as users can see who is available before transferring a call. BLF is commonly used in office environments to improve internal communication and productivity. It integrates seamlessly with VoIP systems, helping receptionists and team members manage calls more effectively.
