AASTRA 480i User Manual

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41-001129-00 Rev 09, Release 1.4.1
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Preface
Preface
About this guide
Introduction
This SIP IP Phone Administrator Guide provides information on the basic 
network setup, operation, and maintenance of the IP phones, Models 480i, 480i 
Cordless (480i CT), 9112i, and 9133i. It also includes details on the functioning 
and configuration of the IP phones.
Audience
This guide is for network administrators, system administrators, developers and 
partners who need to understand how to operate and maintain the IP phone on a 
SIP network. It also provides some user-specific information.
This guide contains information that is at a technical level, more suitable for 
system or network administrators. Prior knowledge of IP Telephony concepts is 
recommended.
Note: 
Features, characteristics, requirements, and configuration that are 
specific to a particular IP phone model are indicated where required in 
this guide.