Cisco SPA 501G Administration Manual page 281

Cisco SPA 500 Series and Wireless IP Phone Field Reference
Ext Tab
Cisco SPA 500 Series and WIP310 IP Phone Administration Guide
Parameter
Use Outbound Proxy
Outbound Proxy
Use OB Proxy In Dialog
Register
Make Call Without Reg
Description
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=
50| n ode2.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.
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.
Defaults to yes.
Enable periodic registration with the <Proxy>. This
parameter is ignored if <Proxy> is not specified.
Defaults to yes.
Allow making outbound calls without successful
(dynamic) registration by the unit. If no, the dial tone will
not play unless registration is successful.
Defaults to no.
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