P-2002 Series User’s Guide
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Table of Contents
3.2 General Setup
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35
3.2.1 Domain Name
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35
3.3 General Setup Configuration
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35
3.4 Configuring Password
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36
3.5 Pre-defined NTP Time Servers List
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37
3.6 Configuring Time Setting
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37
Chapter 4
Ethernet Screens
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41
4.1 ETHERNET Overview
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41
4.1.1 IP Address and Subnet Mask
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41
4.1.2 DNS Server Address Assignment
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41
4.1.3 PPPoE Encapsulation
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42
4.2 Configuring Ethernet
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42
4.3 Configuring the Ethernet Management Port
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44
Chapter 5
Introduction to VoIP
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45
5.1 Introduction to VoIP
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45
5.2 Introduction to SIP
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45
5.2.1 SIP Identities
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5.2.1.1 SIP Number
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5.2.1.2 SIP Service Domain
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5.2.2 SIP Call Progression
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5.2.3 SIP Servers
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46
5.2.3.1 SIP User Agent
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5.2.3.2 SIP Proxy Server
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5.2.3.3 SIP Redirect Server
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5.2.3.4 SIP Register Server
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48
5.2.4 RTP
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48
5.3 NAT
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5.3.1 NAT Example
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5.3.2 NAT Types
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5.3.2.1 Full Cone NAT
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5.3.2.2 Restricted Cone NAT
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5.3.2.3 Port Restricted Cone NAT
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5.3.2.4 Symmetric NAT
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52
5.4 NAT and SIP
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53
5.4.1 SIP ALG
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5.4.2 Use NAT Address on SIP and RTP
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53
5.4.3 STUN
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54
5.4.4 Outbound Proxy
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5.5 Pulse Code Modulation
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54