Grandstream Networks 200 Series Menu, Called, Callers, Message, Hold, Transfer, Conference, Flash

Key Button	Key Button Definitions
0 - 9, *, #	Digit, star and pound keys are usually used to make
	phone calls
	1) Reduce handset, speakerphone/headset volume after
	off hook the phone via handset or speaker
	2) Reduce ring tone volume when phone in IDLE and off
↓	hook to confirm the changed ring tone volume
	3) Next menu item browsing when phone is in IDLE
	mode after MENU key pressed, off hook to interrupt and
	exit
	1) Increase handset, speakerphone/headset volume after
	off hook the phone via handset or speaker
	2) Increase ring tone volume when phone in IDLE and
↑	off hook to confirm the changed ring tone volume
	3) Previous menu item browsing when phone is in IDLE
	mode after MENU key pressed, off hook to interrupt and
	exit
	Enter keypad MENU mode when phone is in IDLE
MENU	mode.
	It is also the ENTER key once entering MENU
	After off hook, press to display the dialed numbers.
CALLED	When number displayed, press the SEND key can make
	call using that displayed number
	After off hook, press to display the incoming Caller IDs.
CALLERS	When number displayed, press the SEND key can make
	call using that displayed number
MESSAGE	Enter to retrieve voice mails from Voice Mail Portal or
	Server
HOLD	Temporarily hold the active call
TRANSFER	Transfer the active call to another party
CONFERENCE	Establish 3-way conferencing call
FLASH	Flash event to switch between two lines
MUTE/DEL	Mute an active call; or Delete a key entry, call log etc

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