AT&T 999-507-144 system manual Lights Line Status

Lights

DESCRIPTION	The lights next to the line buttons on your MERLIN Plus system voice
	terminal allow you to know immediately the status of any of your lines. There
	is also a light next to the Message button, and, on most voice terminals, there
	is a light next to the Speaker button.
			Lights		Line Status
	Red light steady			This is either the line you are now
				using or the line you will get when
				you lift your handset.
	Green	light	steady	This line is busy.
	Green	light	flashing	This is the line on which a call is
				coming in.
	Green light flashing rapidly			This is the line of a call you have
				put on hold.
	Green light flashing slowly			This is the line of a call someone
				else has put on hold from another
				voice	terminal.
	Alternating flashing red and green			Someone in the system has bridged
	lights on a line you are using			onto your call.
	Green light on next to the Message			This means that the attendant has
	button			a message waiting for you.
	Green light on next to the Speaker			This means that the voice terminal
	button			speaker is on. Without lifting the
				handset, you can begin dialing, or
				you can hear a conversation
				through the speaker. However, for
				others to hear you, you must lift
				the handset.
	Green light on next to the			You can answer and speak to
	HFAI/Mic button on a 10-button			others on intercom calls without
	HFAI voice terminal or next to the			lifting	your handset.
	HFAI button on a 34-button BIS
	voice	terminal
	Green light on next to the			You can answer and speak to
	Speakerphone and Microphone			others on all calls without lifting
	buttons on a 34-button BIS voice			your handset.
	terminal

MERLIN Plus System Features 5-41