Cortelco 2757 User Manual
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7. All the lighted buttons on the phone should now briefly light. If not, please verify that the
phone has power.
7.1 By default, the 2757 will use Dynamic Host Configuration Protocol (DHCP) to obtain an IP
address automatically. You will see the message below during this time.
If the phone is unable to get an IP address, the Message Waiting LED (the bar-shaped LED
located above the LCD) will light in red. The phone will try to obtain an IP address for 2 to 3
minutes. After this, the Message Waiting LED will go out, the “Loading” message will
disappear, and the phone will stop trying to obtain an IP address.
7.2 If an IP address is obtained, you will see screen shown below. If you do not see this
message, please check the network cable and the DHCP server. Section 2 describes how to
assign an IP address.
8. You should now hear dial tone when you lift the handset.