User manual

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Covad Confidential
Example 3: Port Forwarding
Some home routers may not have DMZ capability, or the DMZ configuration isn’t passing traffic through to
the phone. In this case, implement port forwarding on the router. This forwards specific traffic from
Covad’s network to the phone’s IP address connected to the router.
In this example we are using a Linksys BEFSX41 router with phone 192.168.1.200. Enter the ports below
and your phone’s IP address.
The following ports need to be open for Cisco IP Phones:
50200 thru 50800 TFTP
12574 TCP/UDP
2427 RTP
2727-2730 RTP