SIP Call Progression, Invite | ZyXEL Communications 2000W specs

Prestige 2000W_V2 User’s Guide

12.9.1.1.2SIP Service Domain

The SIP service domain of the VoIP service provider is the domain name in a SIP URI. For example, if the SIP address is 1122334455@VoIP-provider.com, then “VoIP-provider.com” is the SIP service domain.

12.9.1.2 SIP Call Progression

The following figure displays the basic steps in the setup and tear down of a SIP call. A calls B.

Table 10 SIP Call Progression

A	B

1. INVITE

2. Ringing

3. OK

4. ACK

5.Dialogue (voice traffic)

6. BYE

7. OK

1A sends a SIP INVITE request to B. This message is an invitation for B to participate in a SIP telephone call.

2B sends a response indicating that the telephone is ringing.

3B sends an OK response after the call is answered.

4A then sends an ACK message to acknowledge that B has answered the call.

5Now A and B exchange voice media (talk).

6After talking, A hangs up and sends a BYE request.

7B replies with an OK response confirming receipt of the BYE request and the call is terminated.

12.9.1.3SIP Client Server

SIP is a client-server protocol. A SIP client is an application program or device that sends SIP requests. A SIP server responds to the SIP requests.

When you use SIP to make a VoIP call, it originates at a client and terminates at a server. A SIP client could be a computer or a SIP phone. One device can act as both a SIP client and a SIP server.

12.9.1.3.1SIP User Agent

A SIP user agent can make and receive VoIP telephone calls. This means that SIP can be used for peer-to-peer communications even though it is a client-server protocol. In the following figure, either A or B can act as a SIP user agent client to initiate a call. A and B can also both act as a SIP user agent to receive the call.

78	Chapter 12 User Web Configurator Screens

Image 78

ZyXEL Communications 2000W manual SIP Call Progression, SIP Client Server, Invite

Contents

Prestige 2000WV2 Page Trademarks CopyrightDisclaimer Prestige 2000WV2 User’s Guide Federal Communications Commission FCC Interference Statement Certifications Safety Warnings Safety Warnings ZyXEL Limited Warranty ZyXEL Limited Warranty Customer Support Customer Support United Kingdom Table of Contents Chapter Network Settings Chapter Information Menus Appendix a Product Specifications 107 Appendix B Appendix C Prestige 2000WV2 User’s Guide Table of Contents List of Figures List of Figures Peer-to-Peer Communication in an Ad-hoc Network 119 List of Tables List of Tables Eight Subnets Related Documentation PrefaceAbout Your Prestige Syntax Conventions User Guide Feedback Graphics Icons Key Features Getting To Know Your Prestige Applications Place a Call via SIP Proxy Server SIP Call Server Ad-Hoc Wireless Intercom Direct IP to IP Calling Getting to Know the Prestige Hardware Prestige Hardware Descriptions Prestige 2000WV2 User’s Guide Prestige 2000WV2 User’s Guide Getting To Know Your Prestige Using the LCD Screen Menus Using the LCD Screen MenusLCD Main Screen Navigating the LCD Screen Menus Text InputPrestige 2000WV2 User’s Guide LCD Main Screen Press the OK key when you are done Prestige 2000WV2 User’s Guide Using the LCD Screen Menus Site Survey Wireless LAN Setup MenusWireless LAN Setup Menus Select Site Survey Ssid Network ModeSelect Wireless in the first menu screen use the up or down Arrow to highlight it and then press the Left key Select Network Mode Channel Rate WEP Encryption Authentication Type Select Key Select WEP for encryption, not for authentication Profiles Create Prestige 2000WV2 User’s Guide Wireless LAN Setup Menus Fixed IP Network SettingsNetwork Settings Select IP Address Dhcp Select Subnet Mask PPPoE Select PPPoE Name Select PPPoE Pwd Registrar Server SIP SettingsSIP Settings Select Registrar Select Registrar IP Outbound Proxy Server Select Expiry TimeSelect Outbound Proxy Proxy Server Select Proxy Server User Account Select User Account Select Phone Number Select User Pwd Prestige 2000WV2 User’s Guide SIP Settings Adding a Phonebook Entry PhonebookCalling Methods Phonebook Editing Phonebook Entries Select Add Entry Erasing Phonebook Entries Speed Dial Phonebook Entries Select Speed Dial Call History Missed CallsCall History Received Calls Dialed Calls Erasing Calls Select Erase Calls Miscellaneous Settings Setting the Ring MelodyMiscellaneous Settings Setting the Vibration Mode Adjusting the Ring VolumeSelect Ringer Volume Select Edit Time Setting the TimeSetting the Date Select Edit Date Select Settings in the first menu screen Setting the BannerSetting the Key Lock Press the Left key to save your setting Setting the Don’t Disturb Select Don’t Disturb Prestige 2000WV2 User’s Guide Miscellaneous Settings Select MAC Address Information MenusDisplaying Information Information Menus 11Select Firmware Ver Prestige Usage Using the Phonebook to Dial a Telephone NumberUsing Speed Dial to Dial a Telephone Number Dialing a Telephone Number Changing the Volume Answering a CallRejecting a Call Login Using the Web Configurator ScreensIntroduction to the Web Configurator Using the Web Configurator Screens Navigating the Prestige Web Configurator Login Screen NAT Trvsl Web Configurator User Screens SummarySIP Phone Book Web Configurator Administrator Screens Summary PhoneTOS/DS Device Information User Web Configurator ScreensUser Web Configurator Screens IP Address Assignment IP Address and Subnet Mask MAC Address Network Configuration Static DNS Server Network Configuration Dhcp CancelApply Dhcp Network Configuration PPPoE PPPoE Network Configuration SIP Identities VoIP Introduction12.9.1 SIP PPPoE SIP Call Progression SIP Call ProgressionSIP Client Server Invite SIP Proxy Server SIP Configuration 12.9.1.4 RTP 12.11 NAT SIP Proxy NAT Example NAT Types Full Cone NAT Full Cone Restricted Cone Port Restricted Symmetric Restricted Cone NAT Full Cone NAT Example Port Restricted Cone NAT Symmetric NAT NAT and SIP SIP ALGFake WAN Address on SIP and RTP NAT Traversal Configuration StunOutbound Proxy NAT Traversal Configuration ALG Calling Methods Phone Book ConfigurationPhone Book Stun Phonebook Delete WEP Encryption Wireless IntroductionWireless Settings Prestige 2000WV2 User’s Guide Phonebook Ssid WEP 12.19 S/W Update SystemSubmit W Update Zip files before you can upload them Administrator Web Configurator Screens Administrator Web Configurator Screens SIP Proxy Configuration Type the SIP proxy server settings SIP Configuration SIP URI Prestige 2000WV2 User’s Guide IP Configuration Voice Coding13.3.1 G.711 Pstn Call Setup Signaling Phone Setting13.3.2 G.729 100 Administrator Web Configurator Screens Quality of Service Administrator Web Configurator Screens 101 102 Administrator Web Configurator Screens 13.8 ToSIntroduction to DiffServ Troubleshooting Problems Starting Up the PrestigeProblems Using the Keypad Problems Accessing the Prestige Troubleshooting Accessing the Prestige104 Troubleshooting Error Message Troubleshooting Error Message TroubleshootingRestoring the Factory Default Settings Troubleshooting 105 Prestige 2000WV2 User’s Guide 106 Troubleshooting Appendix a Product Specifications 107 Specification TablesHardware Specifications MIC HTTP, TFTP, TCP, UDP, DNS, ARP, Icmp Prestige 2000WV2 User’s Guide Firmware Features108 Appendix a Product Specifications Essid Classes of IP Addresses IP AddressingIP Classes Appendix B IP Subnetting 109 Allowed IP Address Range By Class Subnet MasksSubnetting Natural Masks Two Subnets Example Example Two SubnetsAlternative Subnet Mask Notation Appendix B IP Subnetting 111 Subnet 112 Appendix B IP Subnetting Example Four Subnets Appendix B IP Subnetting 113 Class C Subnet Planning Example Eight SubnetsEight Subnets 114 Appendix B IP Subnetting Subnetting With Class a and Class B Networks Class B Subnet PlanningAppendix B IP Subnetting 115 Prestige 2000WV2 User’s Guide 116 Appendix B IP Subnetting Traditional Dial-up Scenario PPPoE in ActionBenefits of PPPoE Appendix C PPPoE 117 How PPPoE Works Prestige as a PPPoE Client Wireless LAN Topologies Ad-hoc Wireless LAN ConfigurationAppendix D Wireless LANs 119 Basic Service Set 120 Appendix D Wireless LANs Appendix D Wireless LANs 121 Infrastructure Wlan Prestige 2000WV2 User’s Guide 122 Appendix D Wireless LANs Index 123 IndexNumerics Dtmf 124 Index 711 22, 98 729 22, 99 Index 125 126 Index SIP ALG Index 127 Wlan