Cisco SPA301 Administration Manual page 339

Cisco SPA IP Phone Field Reference
Ext Tab
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide
Parameter
Use Outbound Proxy
Use OB Proxy In
Dialog
Register
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 (Cisco SPA500
Series 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|node2.sip.server.com:506
0:p=2:w=50
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
Set Use DNS SRV to no and DNS SRV Auto Prefix to
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.
Defaults to yes.
Enable periodic registration with the <Proxy>. This
parameter is ignored if <Proxy> is not specified.
Defaults to yes.
A
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