Cisco SPA IP Phone Field Reference
Provisioning Tab
Cisco Small Business SPA 300 Series, SPA 500 Series, and WIP310 IP Phone Administration Guide 232
B
 
Linksys Key System Parameters
Provisioning Tab
NOTE For information about the Provisioning page, see the Cisco Small Business IP 
Telephony Devices Provisioning Guide.
Parameter Description
Linksys Key System Enable or disable the Linksys Key System on the IP 
phone.
Defaults to yes.
Multicast Address The multicast address is used by the Cisco SPA 9000 
to communicate with the Cisco SPA IP phones. 
Defaults to 224.168.168.168:6061.
Key System Auto Discovery Enables or disables auto discovery of the call control 
server (for example, the Cisco SPA 9000). Disable this 
feature for teleworkers or other scenarios where 
multicast does not work.
Key System IP Address IP address of the call control server IP. Enter the IP 
address for teleworkers or other scenarios where 
multicast does not work.
Force LAN Codec The choices are: none, G.711u, or G.711a. Defaults to 
none.