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Chapter 9 Voice
P-2812HNU-51c User’s Guide
192
to the IP address that it received back from the redirect server. Redirect servers
do not initiate SIP requests.
In the following example, you want to use client device A to call someone who is
using client device C.
1
Client device A sends a call invitation for C to the SIP redirect server (B).
2
The SIP redirect server sends the invitation back to A with C’s IP address (or
domain name).
3
Client device A then sends the call invitation to client device C.
Figure 87
SIP Redirect Server
SIP Register Server
A SIP register server maintains a database of SIP identity-to-IP address (or
domain name) mapping. The register server checks your user name and password
when you register.
RTP
When you make a VoIP call using SIP, the RTP (Real time Transport Protocol) is
used to handle voice data transfer. See RFC 1889 for details on RTP.
Содержание P-2812HNU-51c
Страница 2: ......
Страница 8: ...Safety Warnings P 2812HNU 51c User s Guide 8 ...
Страница 10: ...Contents Overview P 2812HNU 51c User s Guide 10 ...
Страница 19: ...19 PART I User s Guide ...
Страница 20: ...20 ...
Страница 73: ...73 PART II Technical Reference ...
Страница 74: ...74 ...
Страница 88: ...Chapter 4 Status Screens P 2812HNU 51c User s Guide 88 ...
Страница 118: ...Chapter 5 WAN Setup P 2812HNU 51c User s Guide 118 ...
Страница 204: ...Chapter 9 Voice P 2812HNU 51c User s Guide 204 ...
Страница 210: ...Chapter 10 File Sharing P 2812HNU 51c User s Guide 210 ...
Страница 216: ...Chapter 11 Firewall P 2812HNU 51c User s Guide 216 ...
Страница 223: ...Chapter 12 Certificate P 2812HNU 51c User s Guide 223 Figure 99 Certificate Details ...
Страница 232: ...Chapter 13 Static Route P 2812HNU 51c User s Guide 232 ...
Страница 236: ...Chapter 14 Policy Forwarding P 2812HNU 51c User s Guide 236 ...
Страница 252: ...Chapter 16 Quality of Service QoS P 2812HNU 51c User s Guide 252 ...
Страница 274: ...Chapter 19 Universal Plug and Play UPnP P 2812HNU 51c User s Guide 274 ...
Страница 284: ...Chapter 21 Interface Group P 2812HNU 51c User s Guide 284 ...
Страница 288: ...Chapter 22 System Settings P 2812HNU 51c User s Guide 288 ...
Страница 292: ...Chapter 23 Logs P 2812HNU 51c User s Guide 292 ...
Страница 300: ...Chapter 24 Tools P 2812HNU 51c User s Guide 300 ...
Страница 320: ...Chapter 27 Product Specifications P 2812HNU 51c User s Guide 320 ...
Страница 336: ...Appendix A Network Troubleshooting P 2812HNU 51c User s Guide 336 ...
Страница 376: ...Appendix C Pop up Windows JavaScripts and Java Permissions P 2812HNU 51c User s Guide 376 ...
Страница 388: ...Appendix D IP Addresses and Subnetting P 2812HNU 51c User s Guide 388 ...