Cortelco 2757 User Manual
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6.
Now you must set the subnet mask. Press ‘Up’ or ‘Down’ until ‘3. Subnet mask (Static)’ is
selected, then press ‘Select’. You’ll be prompted to input the subnet mask. Use the method
described above to enter the subnet mask.
7.
Now you must set the default router. Press ‘Up’ or ‘Down’ until ‘4. Default Router (Static)’ is
selected, then press ‘Select’. You will be prompted to input the IP address of the router on
your local network.
8.
Setting the DNS IP Address is the last step for a static IP setup. Press ‘Up’ or ‘Down’ until ‘5.
DNS Server 1 (Static)’ is selected, and enter the IP address of the DNS server here.
NOTE: You can set a secondary DNS Server IP address by moving to item ‘6. DNS Server 2
(Static)’. At least one DNS Server is required to make the 2757 work properly.
9.
After the IP address is set, please move to Section 2.5 to enter your SIP server information.