Chapter 21 Voice
187
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 116
SIP Call Through Proxy Servers
UA 1
UA 2
PROXY 1
PROXY 2
SIP
SIP
SIP
SIP
&
RTP
The following table shows the SIP call progression.
Table 105
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
Summary of Contents for Movistar GPT-2541GNAC
Page 47: ...Chapter 4 LAN 47 Figure 25 LAN Setup...
Page 99: ...Chapter 11 DNS 99 Figure 62 DNS Server...
Page 144: ...Chapter 20 Wireless 144 Figure 92 Wireless Security...
Page 166: ...Chapter 21 Voice 166...
Page 196: ...Chapter 21 Voice 196...