Configuring IP Telephony 1553C10165D E1 Digital Line Cards and 3C10116D T1 Digital Line Cards donot support DHCP option 184. If your DHCP server is set up to use option184, you must still manually configure these digital line cards. See theNBX Administrator’s Guide for more information.RFC 2132 (DHCP Options and BOOTP Vendor Extensions) defines vendorspecific options that allow you to configure the server to send locallydefined information to DHCP clients. NBX system devices support option184. If you create and activate option 184 on your DHCP server, and useit to specify the IP address of the NCP, you do not need to manuallyconfigure the address on the NBX devices. For an example of how toconfigure a DHCP server for option 184, see Appendix C, “ConfiguringOption 184 on a Windows 2000 DHCP Server” in the NBXAdministrator’s Guide.Configuring IPTelephonySetting up IP telephony is the same whether you are installing the NBXsystem for the first time or adding IP to an existing system. The generalsteps for setting up IP telephony are covered in these sections:■ Selecting the Operating Mode■ Configuring IP On-the-Fly■ Configuring the DHCP Server■ Manually Configuring Telephone IP SettingsSelecting theOperating ModeTo select the IP operating mode:1 Log in to the NBX NetSet utility using the administrator username andpassword.2 In the NBX NetSet - Main Menu window, click System Configuration.3 In the System Configuration window, click the System Settings tab.4 Click System-wide. The System Configuration - System Settings dialogbox appears.5 Select the appropriate entry from the Network Protocol list. The choices:■ Ethernet Only — Layer 2.■ Standard IP — Every device requires an IP address. Either use DHCPor manually assign the IP addresses.
