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Chapter 11 Voice
P-2602HWLNI User’s Guide
174
The following figure shows the SIP and session traffic flow between the user agents (
UA 1
and
UA 2
) and the proxy servers (this example shows two proxy servers,
PROXY 1
and
PROXY 2
).
Figure 100
SIP Call Through Proxy Servers
The following table shows the SIP call progression.
1
User Agent 1
sends a SIP INVITE request to
Proxy 1
. This message is an invitation to
User Agent 2
to participate in a SIP telephone call.
Proxy 1
sends a response indicating
that it is trying to complete the request.
2
Proxy 1
sends a SIP INVITE request to
Proxy 2
.
Proxy 2
sends a response indicating
that it is trying to complete the request.
3
Proxy 2
sends a SIP INVITE request to
User Agent 2
.
4
User Agent 2
sends a response back to
Proxy 2
indicating that the phone is ringing. The
response is relayed back to
User Agent 1
via
Proxy 1
.
Table 59
SIP Call Progression
UA 1
PROXY 1
PROXY 2
UA 2
Invite
Invite
100 Trying
Invite
100 Trying
180 Ringing
180 Ringing
180 Ringing
200 OK
200 OK
200 OK
ACK
RTP
RTP
BYE
200 OK
UA 1
UA 2
PROXY 1
PROXY 2
SIP
SIP
SIP
SIP
&
RTP
Summary of Contents for P-2602HWLNI
Page 2: ......
Page 7: ...Safety Warnings P 2602HWLNI User s Guide 7...
Page 8: ...Safety Warnings P 2602HWLNI User s Guide 8...
Page 24: ...Table of Contents P 2602HWLNI User s Guide 24...
Page 32: ...List of Figures P 2602HWLNI User s Guide 32...
Page 38: ...List of Tables P 2602HWLNI User s Guide 38...
Page 39: ...39 PART I Introduction Introducing the ZyXEL Device 41 Introducing the Web Configurator 49...
Page 40: ...40...
Page 60: ...Chapter 2 Introducing the Web Configurator P 2602HWLNI User s Guide 60...
Page 62: ...62...
Page 86: ...Chapter 5 Bandwidth Management Wizard P 2602HWLNI User s Guide 86...
Page 98: ...Chapter 6 Status Screens P 2602HWLNI User s Guide 98...
Page 100: ...100...
Page 154: ...Chapter 9 Wireless LAN P 2602HWLNI User s Guide 154...
Page 166: ...Chapter 10 Network Address Translation NAT Screens P 2602HWLNI User s Guide 166...
Page 167: ...167 PART IV VoIP Voice 169 VoIP Trunking 211 Phone Usage 227...
Page 168: ...168...
Page 226: ...Chapter 12 VoIP Trunking P 2602HWLNI User s Guide 226...
Page 230: ...Chapter 13 Phone Usage P 2602HWLNI User s Guide 230...
Page 232: ...232...
Page 264: ...Chapter 15 Firewall Configuration P 2602HWLNI User s Guide 264...
Page 268: ...Chapter 16 Content Filtering P 2602HWLNI User s Guide 268...
Page 274: ...Chapter 17 Introduction to IPSec P 2602HWLNI User s Guide 274...
Page 309: ...Chapter 19 Certificates P 2602HWLNI User s Guide 309 Figure 173 My Certificate Details...
Page 320: ...Chapter 19 Certificates P 2602HWLNI User s Guide 320 Figure 181 Trusted Remote Host Details...
Page 326: ...326...
Page 330: ...Chapter 20 Static Route P 2602HWLNI User s Guide 330...
Page 338: ...Chapter 21 Bandwidth Management P 2602HWLNI User s Guide 338...
Page 342: ...Chapter 22 Dynamic DNS Setup P 2602HWLNI User s Guide 342...
Page 360: ...Chapter 23 Remote Management Configuration P 2602HWLNI User s Guide 360...
Page 372: ...Chapter 24 Universal Plug and Play UPnP P 2602HWLNI User s Guide 372...
Page 374: ...374...
Page 380: ...Chapter 25 System P 2602HWLNI User s Guide 380...
Page 406: ...Chapter 28 Troubleshooting P 2602HWLNI User s Guide 406...
Page 422: ...Chapter 30 Diagnostic P 2602HWLNI User s Guide 422...
Page 432: ...Chapter 31 Product Specifications P 2602HWLNI User s Guide 432...
Page 434: ...434...
Page 446: ...Appendix A Setting up Your Computer s IP Address P 2602HWLNI User s Guide 446...
Page 482: ...Appendix F Legal Information P 2602HWLNI User s Guide 482...
Page 488: ...Appendix G Customer Support P 2602HWLNI User s Guide 488...