ZyXEL Communications Prestige 2602H Series - Manual (Page 14)

Prestige 2602H/HW Series User’s Guide
14 Table of Contents
Chapter 7
Network Address Translation (NAT) Screens .................................................... 121
7.1 NAT Overview ..................................................................................................121
7.1.1 NAT Definitions .......................................................................................121
7.1.2 What NAT Does ......................................................................................122
7.1.3 How NAT Works .....................................................................................122
7.1.4 NAT Application ......................................................................................123
7.1.5 NAT Mapping Types ...............................................................................123
7.2 SUA (Single User Account) Versus NAT ..........................................................124
7.3 SUA Server ......................................................................................................125
7.3.1 Default Server IP Address ......................................................................125
7.3.2 Port Forwarding: Services and Port Numbers ........................................125
7.3.3 Configuring Servers Behind SUA (Example) ..........................................126
7.4 Selecting the NAT Mode ..................................................................................126
7.5 Configuring SUA Server ...................................................................................127
7.6 Configuring Address Mapping ..........................................................................129
7.7 Editing an Address Mapping Rule ....................................................................130
Chapter 8
Introduction to VoIP ............................................................................................. 133
8.1 Introduction to VoIP ..........................................................................................133
8.2 SIP ..................................................................................................................133
8.2.1 SIP Identities ...........................................................................................133
8.2.1.1 SIP Number ...................................................................................133
8.2.1.2 SIP Service Domain ......................................................................134
8.2.2 SIP Call Progression ...............................................................................134
8.2.3 SIP Servers .............................................................................................134
8.2.3.1 SIP User Agent .............................................................................135
8.2.3.2 SIP Proxy Server ...........................................................................135
8.2.3.3 SIP Redirect Server ......................................................................136
8.2.3.4 SIP Register Server ......................................................................137
8.2.4 RTP .........................................................................................................137
8.3 SIP ALG ...........................................................................................................137
8.4 Pulse Code Modulation ....................................................................................137
8.5 Voice Coding ....................................................................................................138
8.5.1 G.711 .......................................................................................................138
8.5.2 G.729 ......................................................................................................138
8.6 PSTN Call Setup Signaling ..............................................................................138
8.7 MWI (Message Waiting Indication) ...................................................................138
Chapter 9
Voice Screens ....................................................................................................... 139
9.1 Voice Screens Introduction ..............................................................................139