Cisco Linksys SPA9000 - Manual (Page 162)

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Linksys SPA9000 Administrator Guide
Document Version 3.01
Chapter 6 SPA9000 Field Reference
SIP Tab
PBX Parameters
EXT IP External IP address to substitute for the actual IP address of the SPA9000 in all outgoing
SIP messages. If 0.0.0.0 is specified, no IP address substitution is performed.
If this parameter is specified, the SPA9000 assumes this IP address when generating SIP
messages and SDP (if NAT Mapping is enabled for that line). However, the results of
STUN and VIA received parameter processing, if available, supersede this statically
configured value.
The default is 0.0.0.0.
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.
The default is 0.
NAT Keep Alive Intvl Interval between NAT-mapping keep alive messages.
The default is 15.
Field Description
Proxy Network Interface This setting tells the SPA9000 how the client stations are connected. Choices: {LAN,
WAN}. Default is WAN. The SPA9000 communicates with client stations via the selected
interface only.
Proxy Listen Port Port at which the SPA9000 listens for client messages at the selected network interface.
The proxy also sends SIP messages from this port.
The default is 6060.
Multicast Address IP address (and port number) where the SPA9000 sends control messages to all the client
stations at once. This must be a multicast address and must contain a port number.
The default is 224.168.168.168:6061.
Group Page Address IP address (and port number) where the SPA9000 tells the client stations to send and
receive group page RTP packets. This must be a multicast address and must contain a port
number.
The default is 224.168.168.168:34567.
Max Expires Sets the maximum allowed Registration expires value in seconds for client stations.
Linksys recommends using a smaller value, such as 60 or 120.
The default is 3600.
Force Media Proxy Forces external client stations to use the SPA9000 Media Proxy when exchanging RTP
traffic with external peers. Linksys recommends using a smaller value, such as 60 or 120.
The default is no.