Cisco SPA301 User Manual

Cisco SPA IP Phone Field Reference
SIP Tab
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 272
A
Linksys Key System Parameters
EXT RTP Port Min External port mapping number of the RTP Port
Min. number. If this value is not zero, the RTP port
number in all outgoing SIP messages is
substituted for the corresponding port value in the
external RTP port range.
Defaults to blank.
NAT Keep Alive Intvl Interval between NAT-mapping keep alive
messages.
Defaults to 15.
Redirect Keep Alive If enabled, the IP phone redirects the keepalive
message when SIP_301_MOVED_PERMANENTLY
is received as the registration response.
Parameter Description
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 SPA9000 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 SPA9000).
Disable this feature for teleworkers or other
scenarios where multicast does not work.

Cisco SPA301 Specifications

General

Brand	Cisco
Model	SPA301
Category	IP Phone
Language	English