Operation Manual – Location Server Configuration
H3C XE 200/2000 IP PBX
Chapter 2 NAT/FW Tunnel Traversal
2-5
6) When the call is being carried out, H.323 Gateway 1 and H.323 Gateway 2
exchange voice media stream through the UDP tunnel (Tunnel 3) established
between the PS on XE IP PBX 1 and the PS on XE IP PBX 2.
II. Tunnel traversal between different private networks using XE IP PBXs
As shown in
Figure 2-4
, Process Server 1 and H.323 Gateway 1 reside in Private
Network 1. Process Server 3 and H.323 Gateway 2 reside in Private Network 2.
Process Server 2 and the LS reside in the public network. NAT/FW 1 and NAT/FW 2 are
deployed respectively between the two private networks and the public network.
Private Network 1
Public Network
NAT/FW 1
H.323 Gateway 1
XE IP PBX
(Process Server 1)
XE IP PBX
(Process Server 2)
XE IP PBX
(Location Server)
Tunnel 1
Tunnel 2
Tunnel 3
H.323 Gateway 2
XE IP PBX
(Process Server 3)
Tunnel 4
Tunnel 5
Tunnel 6
NAT/FW 2
Private Network 2
Figure 2-4
Diagram for tunnel traversal between different private networks using XE IP
PBXs
The tunnel traversal of the XE IP PBXs between the two private networks is
implemented as follows.
1) The LS opens a TCP port for listening and receiving TCP connection request
when the LS starts.
2)
Process Server 1 establishes a tunnel (Tunnel 1) between itself and the LS when it
starts. This tunnel traverses NAT/FW 1 and is used for the signaling exchange
between Process Server 1 and LS.
3) The LS issues the configuration information about the tunnels to be established
between the PSs in Private Network 1 and the public network to Process Server 1
and Process Server 2.
4)
Process Server 1 establishes a TCP tunnel (Tunnel 2) and an UDP tunnel (Tunnel
3) between itself and Process Server 2. Both the tunnels traverse NAT/FW 1.
5)
In the same way, Tunnel 4, Tunnel 5 and Tunnel 6 are established when Process
Server 3 starts.
6) When establishing a call connection, H.323 Gateway 1 exchanges H.323 call
control signaling, H.323 media channel control signaling, or SIP signaling with
H.323 Gateway 2 through Tunnel 2 and Tunnel 5.
Содержание XE 200 IP
Страница 7: ...Basic Configuration...
Страница 42: ...Process Server Configuration...
Страница 82: ...Location Server Configuration...
Страница 182: ...Feature...
Страница 259: ...System Management...
Страница 341: ...IP Performance and Application...
Страница 349: ...Media Server...
Страница 360: ...Call Services...
Страница 507: ...Appendix A...
Страница 511: ...Appendix B...