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Administrator’s Guide for CP860 IP conference phones

Querying the DHCP (Dynamic Host Configuration Protocol) Server

IP phones are capable of querying a DHCP server. DHCP is enabled on IP phones by

default. The following network parameters can be obtained from the DHCP server

during initialization:

 IP Address

 Subnet Mask

 Gateway

 Primary DNS (Domain Name Server)

 Secondary DNS

You need to configure the network parameters of IP phones manually if any of them is

not provided by the DHCP server. For more information on configuring network

parameters manually, refer to Configuring Network Parameters Manually on page 24.

Contacting the auto provisioning server

CP860 IP conference phones support the FTP, TFTP, HTTP, and HTTPS protocols for auto

provisioning and are configured by default to use TFTP protocol. If IP phones are

configured to obtain configurations from the TFTP server, they will connect to the TFTP

server and download the configuration file(s) during startup. IP phones will be able to

resolve and apply the configurations written in the configuration file(s). If IP phones do

not obtain the configurations from the TFTP server, IP phones will use the configurations

stored in the flash memory.

Updating firmware

If the access URL of the firmware is defined in the configuration file, the IP phone will

download the firmware from the provisioning server. If the MD5 value of the

downloaded firmware file differs from that of the image stored in the flash memory, the

IP phone will perform a firmware update.

Downloading the resource files

In addition to configuration file(s), IP phones may require resource files before it can

deliver service. These resource files are optional, but if some particular features are

being deployed, these files are required.

The followings show examples of resource files:

 Language packs

 Ring tones

 Contact files