Linksys SPA9000 Administration Manual page 202

NAT Keep Alive Dest
EXT SIP Port
Voice tab > Line page
Proxy and Registration section
Proxy
Outbound Proxy
Use Outbound Proxy
Use OB Proxy In Dialog
Register
Make Call Without Reg
Register Expires
Ans Call Without Reg
Use DNS SRV
DNS SRV Auto Prefix
Linksys Voice System Administration Guide
Destination that should receive NAT keep alive messages. If the value is
$PROXY, the messages are sent to the current or outbound proxy.
Default: $PROXY
Enter the port number of the external port to substitute for the actual
SIP port of the SPA9000 in all outgoing SIP messages.
Default: blank
SIP proxy server for all outbound requests.
Default: blank
SIP Outbound Proxy Server where all outbound requests are sent as the
first hop.
Enable the use of <Outbound Proxy>. If set to no, <Outbound Proxy>
and <Use OB Proxy in Dialog) is ignored.
Default: no
Whether to force SIP requests to be sent to the outbound proxy within a
dialog. Ignored if <Use Outbound Proxy> is no or <Outbound Proxy> is
empty.
Default: yes
Enable periodic registration with the <Proxy>. This parameter is ignored
if <Proxy> is not specified.
Default: yes
Allow making outbound calls without successful (dynamic) registration
by the unit. If No, dial tone will not play unless registration is successful.
Default: no
Allow answering inbound calls without successful (dynamic)
registration by the unit. If proxy responded to REGISTER with a smaller
Expires value, the SPA9000 will renew registration based on this smaller
value instead of the configured value. If registration failed with an
Expires too brief error response, the SPA9000 will retry with the value
given in the Min-Expires header in the error response.
Default: 3600
Recommended: 60
Expires value in sec in a REGISTER request. SPA9000 will periodically
renew registration shortly before the current registration expired. This
parameter is ignored if <Register> is no. Values are yes or no.
Whether to use DNS SRV lookup for Proxy and Outbound Proxy.
Default: no
If enabled, the SPA9000 will automatically prepend the Proxy or
Outbound Proxy name with _sip._udp when performing a DNS SRV
lookup on that name.
Default: no
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