Cortelco C56 User manual

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The following items should be included with your telephone:
This telephone may be configured through the web interface or through the
keypad and LCD. A high speed connection to the internet is necessary to use
this telephone to make VoIP calls.

The following chart shows the letters obtained from multiple pressing of the
numeric keys. This is used to enter text on the LCD.

Phone Connection

1. Changing Network Mode - While idle press and hold keys 1, 2, or 3 until the LCD
shows “ARE YOU SURE.” Press the OK key to switch to Static, DHCP or PPPoE
mode respectively.
2. Static mode settings - While idle enter the password, then select the following:
NETWORK-WAN-STATIC NET. Then enter the network information as
requested.
3. PPPoE mode settings - While idle enter the password, then select the following:
NETWORK-WAN-PPPOE. Then enter the user name and password.
Phone Menu Structure

The C56/C56P may also be configured using a web browser.
Find the IP address by pressing the SYSINFO key. Then enter this address into the
address bar of the browser. You will see the screen below.
Enter the user name and password. Default value for both is “admin.”
After logon, you will see the phone web page as shown below.

Select Static as your network type if instructed to do so by your ISP.
Note that your ISP will need to furnish all the connection information.

Select DHCP if your network has a DHCP server.
Select SIP Settings from the main menu. Enter the fields required by your SIP Service provider.
Usually Server Address, Server Port, Authentication User, Authentication Password, and SIP User
are required. Then check Enable Registration and click Apply to register to the SIP server.

IP Address (Peer-to-Peer)
1. Lift the handset or press the speakerphone button.
2. Dial the IP address of the phone to be called. Dial the # key before and after the address
and use the * key for the period. For example: To call 192.168.0.1 dial #192*168*0*1#.
SIP Number
Note that this requires registration to a SIP server.
1. Lift the handset or press the speakerphone button.
2. Dial the SIP extension number of the phone to be called.
3. Press the # key after dialing the numbers or wait for the timer to expire
to place the call.