Setting Up Altiserv-To-Altiserv Ip Network - Altigen AltiWare OE Release 4.0 Getting Started Manual

VoIP Setup
This allows IP's voice and H.323 packets to pass through the firewall
freely. If the firewall supports H.323 protocol, configure the firewall
using H.323 instead of opening up the specific ports.
• Ensure that the rules to permit IP's H.323 traffic are at the beginning
of your access filter list. This will minimize the delay of latency-
sensitive voice packets. This is ESPECIALLY important with long
access lists and/or slow routers.
Network Using NAT
• If you plan to connect to your AltiServ system via the Internet and your
router or Internet access provider is using Network Address
Translation (NAT), please note that most NAT implementations DO
NOT support H.323.
— You are probably using NAT if both of the following conditions
apply:
a) Your AltiServ server's IP address matches any of the following
numbers (where x is any number from 0-255):
• 10.x.x.x
• 172.16.x.x to 172.32.x.x
• 192.168.x.x
b) You are able to connect to the Internet directly WITHOUT using
a proxy or socks server.
— Contact your router/firewall vendor to obtain a software update for
your networking equipment, or obtain routable address space from
your Internet provider. If you are unsure whether or not you are
using NAT, contact your router/firewall vendor or Internet
provider.

Setting Up AltiServ-to-AltiServ IP Network

Two or more AltiServ systems can be networked together to provide
extension to extension connections via IP trunk calls. Users may dial a
remote AltiServ's auto attendant or direct dial to an extension, without
having to dial out through the PSTN. A diagram illustrating a multiple
AltiServ-to-AltiServ connection is provided in Figure 10 and is referred to
as an example throughout the configuration instructions below.
50 AltiWare OE 4.0 Getting Started Manual