D-Link DVA-G3340S Service Domain, URL Scheme, User Parameter, Initial Unregister, Session Expires

	VoIP service provider did not give you a server port
	number for SIP.
Service Domain	Enter the SIP service domain name in this field.
	Select SIP-URLto have the router include the
URL Scheme	domain name with the SIP number in the SIP
	messages that it sends. Select TEL-URLto have
	the router use the SIP number without a domain
	name in the SIP messages that it send.
	You can set this to phone or none. This
User Parameter	determines whether or not the phone number is
	appended to the information forwarded to your SIP
	server. Your VoIP service provider will instruct you
	which setting to use.
	You can set this to enabled or disabled. Some
	SIP servers can become unstable if you are
Initial Unregister	registered more than once (due to a power outage
	and subsequent reboot of the router, for example).
	This setting allows your router to “unregister” itself
	when it is rebooted, removing the previously sent
	registration information.
	Use this field to set how long the router will wait
Register Expires	before sending a repeat registration request if a
	registration attempt fails or there is no response
	from the registration server.
Session Expires	This field will set the longest time that the router
	will allow a SIP session to remain idle (without
	traffic) before dropping it.
	When two SIP devices negotiate a SIP session, they
	must negotiate a common expiration time for idle
	SIP sessions. This field sets the shortest expiration
	time that the router will accept. The router checks
Min-SE	the session expiration values of incoming SIP
	INVITE requests against the minimum session
	expiration value that you enter here. If the session
	expiration of an incoming INVITE request is less
	than this value, the router negotiates with the other
	SIP device to increase the session expiration value
	to match the minimum session expiration value.
	This determines which side of an expired call
Session Expires Refresher	session will initiate the session refresh. uac –
	specifies the Caller side will initiate the session
	refresh. uas – specifies the Call receiver (the
	“Callee”) will initiate the session refresh.

DVA-G3340S User Manual Page 41 of 94 V1.00 AU