Grandstream Networks HandyTone-488 user manual LED Light Pattern Indication, Pstn Pass Through

HandyTone-488 User Manual		Grandstream Networks, Inc.
*50	Disable Call Waiting (for all subsequent calls)
*51	Enable Call Waiting (for all subsequent calls)
*70	Disable Call Waiting. (Per Call)
*71	Enable Call Waiting (Per Call)
*72	Unconditional Call Forward.
	To use this feature, dial “*72” and get the dial tone. Then
	dial the forward number and “#” for a dial tone, then hang
	up.
*73	Cancel Unconditional Call Forward
	To cancel “Unconditional Call Forward”, dial “*73” and get
	the dial tone, then hang up.
*90	Busy Call Forward
	To use this feature, dial “*90” and get the dial tone. Then
	dial the forward number and “#” for a dial tone, then hang
	up.
*91	Cancel Busy Call Forward
	To cancel “Busy Call Forward”, dial “*91” and get the dial
	tone, then hang up
*92	Delayed Call Forward
	To use this feature, dial “*92” and get the dial tone. Then
	dial the forward number and “#” for a dial tone, then hang
	up.
*93	Cancel Delayed Call Forward
	To cancel this Forward, dial “*93” and get the dial tone,
	then hang up
Flash/Hook	When in conversation, this action will switch to the new
	incoming call if there is a call waiting indication.
	When in conversation without an incoming call, this action
	will switch to a new channel for a new call.

5.3.2PSTN Pass Through

When HandyTone-488 is out of power, the RJ 11 line jack on the HandyTone-488 side will function as a pass through jack. Users will be able to use the same analog phone for PSTN calls.

5.4LED Light Pattern Indication

Following tables show the LED light pattern indication.

RED LED always indicates abnormal status

DHCP Failed or WAN No Cable	Button flashes every 2 seconds (if DHCP is configured)
HandyTone-488 fails to register	Button flashes every 2 seconds (if SIP server is
	configured)

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