Cisco SPA303 Administration Guide

Cisco SPA IP Phone Field Reference
Ext Tab
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 304
B
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 (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|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.
Use OB Proxy In Dialog 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.
Register Enable periodic registration with the <Proxy>. This
parameter is ignored if <Proxy> is not specified.
Defaults to yes.
Make Call Without Reg 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.
Parameter Description

Cisco SPA303 Specifications

General

Display	Monochrome LCD
Lines	3
Speakerphone	Yes
Headset Jack	Yes (2.5 mm)
Handset	Yes
Ethernet Ports	2 x 10/100 Mbps
Protocol	SIP
Power	Power over Ethernet (PoE) or AC adapter
Audio Codec Support	G.711, G.729
QoS	802.1p/q