Grandstream Networks HandyTone-488 Keep-alive, Interval, Use NAT IP, Proxy-Require, Tftp Upgrade

HandyTone-488 User Manual		Grandstream Networks, Inc.
Keep-alive	This parameter specifies how often the HandyTone ATA sends a blank
interval	UDP packet to the SIP server in order to keep the “hole” on the NAT
	open.
Use NAT IP:	NAT IP address used in SIP/SDP message. Default is blank.
Proxy-Require	SIP Extension to notify SIP server that the unit is behind the
	NAT/Firewall.
TFTP Upgrade	This is the IP address of the configured TFTP server. If it is non-zero or
Server	not blank, the HandyTone ATA will attempt to retrieve new configuration
	file or new code image from the specified TFTP server at boot time. It
	will make up to 3 attempts before timeout and then it will start the boot
	process using the existing code image in the Flash memory. If a TFTP
	server is configured and a new code image is retrieved, the new
	downloaded image will be verified and then saved into the Flash
	memory.
HTTP Upgrade	The URL for the HTTP server used for firmware upgrade and
Server	configuration via HTTP. For example,
	http://provisioning.mycompany.com:6688/Grandstream/1.0.5.16
	Here “:6688” is the specific TCP port that the HTTP server is listening
	at, it can be omitted if using default port 80.
	Note: Auto Upgrade has to be set to Yes to enable HTTP upgrade.
Auto Upgrade	Choose Yes to enable HTTP upgrade and provisioning.
	In “Check for new firmware every” field, enter the number of days to
	check the HTTP server for firmware upgrade or configuration.
Subscribe for	Default is NO. When set to “Yes” a SUBSCRIBE for Message Waiting
MWI:	Indication will be sent periodically.
Offhook	This parameter allows users to configure a User ID or extension number
Auto-Dial	to be automatically dialed upon offhook. Please note that only the user
	part of a SIP address needs to be entered here. The HandyTone ATA
	will automatically append the “@” and the host portion of the
	corresponding SIP address.
Send Flash Event	This parameter allows users to control whether to send an SIP NOTIFY
	message indicating the Flash event, or just to switch to the voice
	channel when users press the Flash key.
FXS Impedance	Selects the impedance of the analog telephone connected to the Phone
	port.
Caller ID Scheme	• Bellcore (North America)
	• ETSI-FSK (France, Germany, Norway, Taiwan, UK-CCA)

• ETSI-DTMF (Finland, Sweden)

• DTMF (Denmark)

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