NEC 824, 308 manual System Flash Rates for LEDs

Charts

System Flash Rates for LEDs

Your phone is idle (not on a call)	All LEDs out (dark)
Outside Calls
An outside line is busy	The line key is ON (Red)
An outside call is ringing your phone	The line key flashes Slowly (Red)
And then you answer it	The line key is ON (Green)
You place the outside call on Hold	The line key flashes Quickly (Green)
Or a co-worker places the call	The line key flashes Moderately
on Hold	(Red)
You place the outside call on	The line key flickers Moderately
Exclusive Hold	(Green)
You place the outside call on Hold	The line key flashes Quickly (Green)
Intercom Calls
An Intercom call rings your phone	ICM flashes Quickly (Red)
You answer the Intercom call	ICM is ON (Red)
You place the Intercom call on Hold	ICM flickers Slowly (Red)
And then it recalls to you	ICM flickers Slowly (Red)
Miscellaneous Features
You activate Microphone Mute	MIC is ON (Red)
You activate Do Not Disturb	DND/CONF is ON (Red) or flashes
	Moderately (Red) (depending on
	programming)
You send a Message Waiting	MW flickers Moderately (Red)
You have a Message Waiting	MW flashes Quickly (Red)
You activate Call Forwarding	TRFR flashes Slowly (Red)
Your phone is Monitored	MON flashes Quickly (Red)
You are Monitoring a phone	MON flickers Moderately (Red)

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