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SPA and Wireless IP Phone Field Reference
Ext Tab
Cisco SPA500 Series and WIP310 IP Phone Administration Guide
240
B
Share Line Appearance
NAT Settings
Parameter
Description
Share Ext
Indicates whether this extension is to be shared with
other stations or private. If the extension is not shared,
then a call appearance assigned to this extension is not
shared, regardless the setting of <Share Call
Appearance> for that call appearance. If the extension
is shared, then whether or not a call appearance
assigned to this extension is shared follows the setting
of <Share Call Appearance> for that call appearance.
The choices are shared or private.
Defaults to shared.
Shared User ID
The user identified assigned to the shared line
appearance.
Subscription Expires
Number of seconds before the SIP subscription
expires. Before the subscription expiration, the phone
gets NOTIFY messages from the SIP server on the
status of the shared phone extension. Defaults to 60
seconds.
Parameter
Description
NAT Mapping Enable
To use externally mapped IP addresses and SIP/RTP
ports in SIP messages, select yes. Otherwise, select
no.
Defaults to no.
NAT Keep Alive Enable
To send the configured NAT keep alive message
periodically, select yes. Otherwise, select no.
Defaults to no.