Cisco SPA962-NA Administration Guide - Page 3

Contents, Using 900 Series Phones with a Firewall or Router - background

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CONTENTS Preface xi Document Audience xi Linksys 900 Series IP Telephones xi How This Document is Organized xii Document Conventions xii Related Documentation xiii Technical Support xiii 1 C H A P T E R Introducing Linksys 900 Series IP Phones 1-1 Overview 1-1 SPA900 Series Features 1-2 SPA901 Features 1-4 SPA92x, SPA94x, and SPA962 Features 1-4 Ensuring Voice Quality 1-4 Feature Descriptions 1-6 SIP Proxy Redundancy 1-6 Supported Codecs 1-6 Other Features 1-7 Technology Background 1-10 Session Initiation Protocol 1-10 Using 900 Series Phones with a Firewall or Router 1-11 Network Address Translation 1-11 NAT Overview 1-12 NAT Types 1-12 Simple Traversal of UDP Through NAT 1-13 SIP-NAT Interoperation 1-13 Where to Go From Here 1-14 2 C H A P T E R Getting Started 2-1 Linksys 900 Series IP Phones 2-1 Caring for Your Hardware 2-2 SPA901 2-2 Document Version 3.0 Linksys 900 Series IP Phone Administrator Guide iii

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iii
Linksys 900 Series IP Phone Administrator Guide
Document Version 3.0
CONTENTS
Preface
xi
Document Audience
xi
Linksys 900 Series IP Telephones
xi
How This Document is Organized
xii
Document Conventions
xii
Related Documentation
xiii
Technical Support
xiii
CHAPTER
1
Introducing Linksys 900 Series IP Phones
1-1
Overview
1-1
SPA900 Series Features
1-2
SPA901 Features
1-4
SPA92x, SPA94x, and SPA962 Features
1-4
Ensuring Voice Quality
1-4
Feature Descriptions
1-6
SIP Proxy Redundancy
1-6
Supported Codecs
1-6
Other Features
1-7
Technology Background
1-10
Session Initiation Protocol
1-10
Using 900 Series Phones with a Firewall or Router
1-11
Network Address Translation
1-11
NAT Overview
1-12
NAT Types
1-12
Simple Traversal of UDP Through NAT
1-13
SIP-NAT Interoperation
1-13
Where to Go From Here
1-14
CHAPTER
2
Getting Started
2-1
Linksys 900 Series IP Phones
2-1
Caring for Your Hardware
2-2
SPA901
2-2