User manual

101
Supported Networks and Operation
H.323 Gatekeeper (example 3)
If you are using 3rd party equipment such as IP telephony systems, or
videoconferencing systems, then an H.323 gatekeeper is the only choice of location
service. The eyesite 550 provides an H.323 setup menu allowing location through a
gatekeeper.
If connecting through a firewall this must be H.323 aware to allow H.323 traffic to
pass at all times despite public IP address changes.
Setting up your Firewall
Specific firewall configuration information is beyond the scope of this document,
however, a few useful tips are listed below.
Locating your firewall.
1. Check on any PC that has outside access for the firewall address or ‘default
Gateway’ by checking the IP configuration.
2. Do this as follows:
3. Click Start and select Run
4. Type CMD in the box that appears as shown.
5. Type ‘ipconfig’ at the command prompt as shown.