Cisco 521SG Administration Guide - Page 303

Proxy and Registration, Series only for Survivable Remote Site Telephony

Page 303 highlights

Cisco SPA IP Phone Field Reference Ext Tab A Proxy and Registration Parameter Proxy Outbound Proxy Use Outbound Proxy Description SIP proxy server and port number set by the Service Provider for all outbound requests. For example: 192.168.2.100:6060. SIP Outbound Proxy Server where all outbound requests are sent as the first hop. 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 fullyqualified 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. Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 302

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Cisco SPA IP Phone Field Reference
Ext Tab
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide
302
A
Proxy and Registration
Parameter
Description
Proxy
SIP proxy server and port number set by the Service
Provider for all outbound requests. For example:
192.168.2.100:6060.
Outbound Proxy
SIP Outbound Proxy Server where all outbound
requests are sent as the first hop.
Use Outbound Proxy
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
.