Zyxel-communications 2002 Series Bedienungsanleitung Seite 8

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Seitenansicht 7
Prestige 2002 Series User’s Guide
8 Table of Contents
3.4 Configuring Password ........................................................................................30
3.5 Pre-defined NTP Time Servers List ....................................................................31
3.6 Configuring Time Setting ....................................................................................32
Chapter 4
Ethernet Screens.................................................................................................... 35
4.1 ETHERNET Overview ........................................................................................35
4.1.1 IP Address and Subnet Mask ...................................................................35
4.1.2 DNS Server Address Assignment .............................................................35
4.1.3 PPPoE Encapsulation ...............................................................................36
4.2 Configuring Ethernet ..........................................................................................36
4.3 Configuring the Ethernet Management Port .......................................................38
Chapter 5
Introduction to VoIP ............................................................................................... 39
5.1 Introduction to VoIP ............................................................................................39
5.2 Introduction to SIP ..............................................................................................39
5.2.1 SIP Identities .............................................................................................39
5.2.1.1 SIP Number .....................................................................................39
5.2.1.2 SIP Service Domain ........................................................................39
5.2.2 SIP Call Progression .................................................................................40
5.2.3 SIP Servers ...............................................................................................40
5.2.3.1 SIP User Agent Server ....................................................................40
5.2.3.2 SIP Proxy Server .............................................................................41
5.2.3.3 SIP Redirect Server ........................................................................41
5.2.3.4 SIP Register Server ........................................................................42
5.2.4 RTP ...........................................................................................................42
5.3 STUN .................................................................................................................42
5.3.1 NAT ...........................................................................................................42
5.3.2 NAT Types ................................................................................................43
5.3.2.1 Full Cone NAT .................................................................................43
5.3.2.2 Restricted Cone NAT .......................................................................44
5.3.2.3 Port Restricted Cone NAT ...............................................................44
5.3.2.4 Symmetric NAT ...............................................................................45
5.4 SIP ALG .............................................................................................................46
5.5 Pulse Code Modulation ......................................................................................46
5.6 Voice Coding ......................................................................................................46
5.6.1 G.711 .........................................................................................................46
5.6.2 G.729 ........................................................................................................46
5.7 PSTN Call Setup Signaling ................................................................................46
Seitenansicht 7
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