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Step 3 ! Plan Your Configuration
The EdgeMarc 4550 can be deployed as a gateway router in a network. It can also be deployed
in a network behind an existing firewall. Based on your deployment criteria, consult the following
documents for further configuration:
• EdgeMarc 4550 Hardware Installation Guide
• VoIP Operating System (VOS) for EdgeMarc User Manual
Helpful Hints
Although not recommended, the 4550 and IP phones can be installed behind an existing
enterprise firewall. In this instance the firewall will have to be configured to allow access to and
from the 4550’s public IP address for the following ports:
2427, 2429, 2432, and 2727
IP phones normally point to a local NTP server for their time reference. The NTP port 123
needs to be opened if your network does not have an NTP server.
Please Note: Traffic shaping for this configuration is only available if the enterprise data
devices are also installed behind the 4550.
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