Cisco 501G Administration Manual page 98

Configuring SIP, SPCP, and NAT
Configuring SIP
Cisco SPA500 Series and WIP310 IP Phone Administration Guide
Parameter
Proxy
Use Outbound Proxy
Outbound Proxy
Use OB Proxy In Dialog
Description
SIP proxy server and port number set by the service
provider for all outbound requests. For example:
192. 1 68.2. 1 00:6060.
NOTE Port number is optional. The default is port 5060.
Enables an outbound proxy (for example,
172.20.2. 1 :5060—port is optional) or a domain name
such as sip.server.com as long as this name is a fully-
qualified domain name. If set to no, the Outbound Proxy
and Use OB Proxy in Dialog fields are ignored.
Defaults to no.
Optionally, the proxy can be configured (SPA5xx only) for
Survivable Remote Site Telephony (SRST) support. The
proxy is configured with an extension that includes a
statically-configured DNS SRV record or DNS A record.
Configuring the proxy allows for failover and fallback
functionality with a secondary proxy server. For
example:
For SRV Record:
sip.server.com:SRV=node1.sip.server.com:5060:p=1:w=5
0|node2.sip.server.com:5060:p=2:w=50
NOTE Set "Use DNS SRV" to no and "DNS SRV Auto
Prefix" to no.
For A Record:
sip.server.com:A=172.20.2. 1 ,172.20.2.2
NOTE Set "Use DNS SRV" to no and "DNS SRV Auto
Prefix" to no.
SIP outbound proxy server where all outbound requests
are sent as the first hop.
Select yes for SIP requests to be sent to the outbound
proxy within a dialog. This field is ignored if:
•
Use Outbound Proxy is set to no
or
•
Outbound Proxy is blank
Defaults to yes.
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