Operation Manual
Cisco SPA IP Phone Field Reference
Ext Tab
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 292
A
General
Line Enable: To enable this line for service, select yes. Otherwise, select no. 
Defaults to yes.
Share Line Appearance
Parameter Description
Share Ext Indicates whether this extension is to be shared 
with other Cisco SPA IP phones 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.
Restrict MWI When enabled, the message waiting indicator 
lights only for messages on private lines.
Monitor User ID 
(Cisco SPA300 Series, 
Cisco SPA500 Series)
This field is for future use.
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