Linksys SPA922, SPA962, SPA942, SPA932 manual NAT Settings Notes

Customizing SPA9x2 Extensions

General, Shared Line Appearance, and NAT Settings

Parameter	Description
Share Line Appearance	Indicates whether this extension is shared with other stations or
	private.
	If you set this extension to private (not shared), the extension does
	not share calls, regardless of the Share Call Appearance setting on the
	Phone tab.
	If you set this extension to shared, calls follow the Share Call
	Appearance setting on the Phone tab.
	A shared line shows two telephone icons next to the line button to
	indicate that it is shared.
	LCDs of all phones that share line appearances show when a shared
	extension is in use.
	Defaults to private.
Shared User ID	The user assigned to the shared line.
	Defaults to blank.
Subscription Expires	The subscription expiration time with the SIP proxy.
	Defaults to 3600 seconds.
NAT Settings Notes
Parameter	Description
NAT Mapping Enable	Select yes to use externally mapped IP addresses and SIP/RTP ports in
	SIP messages. Otherwise, select no.
	Defaults to no.
NAT Keep Alive Enable	Select yes to send the configured NAT keep alive message
	periodically. Otherwise, select no.
	Defaults to no.
NAT Keep Alive Msg	Enter the keep alive message that is sent periodically to maintain the
	current NAT mapping.
	If the value is $NOTIFY, a NOTIFY message is sent. If the value is
	$REGISTER, a REGISTER message without contact is sent.
	Defaults to $NOTIFY.
NAT Keep Alive Dest	Destination that receives NAT keep alive messages.
	If the value is $PROXY, keep alive messages are sent to the current or
	outbound proxy.
	Defaults to $PROXY.

Linksys SPA9x2 Phone Administration Guide 96