Chapter 17 VoIP
LTE-5121 User’s Guide
181
1
The client device (A in the figure) sends a call invitation to the SIP proxy server B.
2
The SIP proxy server forwards the call invitation to C.
Figure 119
SIP Proxy Server
SIP Redirect Server
A SIP redirect server accepts SIP requests, translates the destination address to an IP address and
sends the translated IP address back to the device that sent the request. Then the client device that
originally sent the request can send requests 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).
B
A
C
1
2
Содержание LTE5121
Страница 4: ...Contents Overview LTE 5121 User s Guide 4...
Страница 12: ...Table of Contents LTE 5121 User s Guide 12...
Страница 13: ...13 PART I User s Guide...
Страница 14: ...14...
Страница 22: ...Chapter 1 Introduction LTE 5121 User s Guide 22...
Страница 28: ...28...
Страница 42: ...Chapter 4 Broadband LTE 5121 User s Guide 42...
Страница 70: ...Chapter 5 Wireless LTE 5121 User s Guide 70...
Страница 98: ...Chapter 7 Static Route LTE 5121 User s Guide 98...
Страница 102: ...Chapter 8 DNS Route LTE 5121 User s Guide 102...
Страница 114: ...Chapter 9 Quality of Service QoS LTE 5121 User s Guide 114...
Страница 138: ...Chapter 14 Parental Control LTE 5121 User s Guide 138...
Страница 148: ...Chapter 15 Certificates LTE 5121 User s Guide 148...
Страница 151: ...Chapter 16 VPN LTE 5121 User s Guide 151 Figure 104 IPSec VPN Add...
Страница 162: ...Chapter 16 VPN LTE 5121 User s Guide 162...
Страница 198: ...Chapter 19 User Account LTE 5121 User s Guide 198...
Страница 214: ...Chapter 26 Backup Restore LTE 5121 User s Guide 214...
Страница 224: ...Chapter 28 Troubleshooting LTE 5121 User s Guide 224...
Страница 234: ...Index LTE 5121 User s Guide 234...