Aastra Telecom 57I C53I User Guide

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Advanced Network Settings
41-001160-00, Rev 01  Release 2.0
4-45
Network Configuration of the IP Phones
Configuring the IP Phones
SIP Precedence Example
The following example shows the SIP proxy feature and example schema for 
storage and parsing of the SIP configuration parameters.
The following SIP configuration is assumed:
# SIP network block
sip proxy ip:  10.30.11.154
sip proxy port: 5060
sip registrar ip:  10.44.122.37
sip registrar port: 4020
sip line3 proxy ip: siparator.vonage.com
sip line3 proxy port: 0
Line3 specifies per-line values for proxy IP address and proxy port, so the phone 
uses those parameter values for SIP calls made on that line. However, because 
those parameters are part of the SIP network block, the phone does not apply any 
of the global SIP network block parameters. So even though the global parameters 
configure a SIP registrar, Line3 on the phone ignores all global network block 
parameters. Since line3 does not contain a per-line SIP registrar entry, the phone 
does not use a registrar for that line.
Note: 
Global SIP parameters apply to all lines unless overridden by a 
per-line configuration.
Per-line settings are configurable for lines 1 through 7