Altigen AltiContact Manager Version 4.6 Administration Manual page 247

Private Network Configuration (AltiWare with private IP
address and behind NAT)
Figure 7. AltiWare behind NAT
Figure 3 shows a private network - 192.168.1.0, where the AltiWare is
installed and running on a host with a private IP address 192.168.1.2.
Router 1 is a H.323 NAT router. The local IP phones, IP Phone 1 and IP
Phone 2, use the private IP addresses 192.168.1.100 and 192.168.1.101,
respectively. There are two remote IP phones; IP Phone 3 with a private IP
address 192.168.2.100 connects to the Internet via Router 2, which must
also support H.323 NAT. Router 2 can also sit behind a DSL/Cable
Modem. Another remote IP phone, IP Phone 4, with a public IP address
202.101.54.61, connects to the Internet directly.
Setup
For the Corporate LAN:
• AltiWare
The public IP address of Router 2 should be configured as the IP
address of this IP extension in AltiWare for IP Phone 3. If it is
AltiContact Manager Administration Manual
VoIP Configuration
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