Grandstream Networks 486 user manual Early Dial

HandyTone-486 User Manual		Grandstream Networks, Inc.
Register Expiration	This parameter allows the user to specify the time frequency (in minutes) the
	HandyTone ATA will refresh its registration with the specified registrar. The default
	interval is 60 minutes (or 1 hour). The maximum interval is 65535 minutes (about 45
	days).
Early Dial	Default is No. Use only if proxy supports 484 response
Dial Plan Prefix	Sets the prefix added to each dialed number
No Key Entry timeout	Default is 4 seconds.
Use # as	This parameter allows the user to configure the “#” key to be used as the “Send”(or
Send Key	“Dial”) key. Once set to “Yes”, pressing this key will immediately trigger the sending of
	dialed string collected so far. In this case, this key is essentially equivalent to the
	“(Re)Dial” key. If set to “No”, this # key will then be included as part of the dial string to
	be sent out.
Local SIP port	This parameter defines the local SIP port the HandyTone ATA will listen and transmit.
	The default value is 5060.
Local RTP port	This parameter defines the local RTP-RTCP port pair the HandyTone ATA will listen
	and transmit. It is the base RTP port for channel 0. When configured, channel 0 will
	use this port_value for RTP and the port_value+1 for its RTCP; channel 1 will use
	port_value+2 for RTP and port_value+3 for its RTCP. The default value is 5004.
Use Random Port	This parameter, when set to Yes, will force random generation of both the local SIP
	and RTP ports. This is usually necessary when multiple HandyTone ATAs are behind
	the same NAT.
NAT Traversal	This parameter defines whether the HandyTone ATA NAT traversal mechanism will be
	activated or not. If activated (by choosing “Yes”) and a STUN server is also specified,
	then the HandyTone ATA will behave according to the STUN client specification.
	Under this mode, the embedded STUN client inside the HandyTone ATA will attempt
	to detect if and what type of firewall/NAT it is behind through communication with the
	specified STUN server. If the detected NAT is a Full Cone, Restricted Cone, or a Port-
	Restricted Cone, the HandyTone ATA will attempt to use its mapped public IP address
	and port in all the SIP and SDP messages it sends out.
	If this field is set to “Yes” with no specified STUN server, then the HandyTone ATA will
	periodically (every 10 seconds or so) send a blank UDP packet (with no payload data)
	to the SIP server 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 Server	This is the IP address of the configured TFTP server. If it is non-zero or 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 Server	The URL for the HTTP server used for firmware upgrade and 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.

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