Configuring DHCP for ShoreTel IP Phones Network Requirements and Preparation
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ShoreTel 14.2 Planning and Installation Guide 55
Configuring DHCP for ShoreTel IP Phones
The ShoreTel server provides the latest application software and configuration information to ShoreTel
IP phones. To receive this information, the ShoreTel IP phone must have the server’s IP address. The
configuration task in this section is for specifying the IP address and other necessary information.
The phone receives the necessary information through a vendor-specific DHCP option. ShoreTel IP
phones have a built-in configuration to seek the ShoreTel server’s address as Vendor Specific DHCP
option 156. If these options are not available, ShoreTel’s IP phones use option 66. ShoreTel IP phones
that support DHCP option 156 are ShoreTel models IP110, IP115, IP212k, IP230, IP230g, IP265,
IP420, IP480, IP480g, IP485g, IP560, IP560g, and IP655.
The configuration task in this section involves a number for the country of the network or subnet where
the phones reside. If necessary, find the number for a country in Table 17.
If your network has separate subnets, be sure to select the correct subnet. For example, if a multi-
national organization needs the DHCP server to deliver Spanish tones and cadences to the IP phones
in an office in Spain, specify the subnet for that office. Without this specification, all phones that boot
from this DHCP server receive Spanish tones and cadences.
Another value for the configuration task is a number that points to a language by its country. Although
this number refers to a language, it is bound to a country, not a language. For this reason, some
countries with different languages have the same language number in the configuration of DHCP
option 156. Table 18 lists the language numbers. (As Table 18 shows, language number 4 is a good
example.) Selecting the correct language code ensures that the phone shows text in the desired
language. Examples of this text are abbreviations for days and months and messages indicating that a
requested service is unavailable.
Note
For information about DHCP settings for the ShoreTel 400-Series IP phones, see the ShoreTel
Maintenance Guide.
Note
The ShoreTel IP Phone 8000 does not support option 156 for this application.
Note
ShoreTel 400-Series IP phones do not use the language or country parameters in DHCP Option 156.
Instead, these phones obtain country and language settings from ShoreTel Director as follows:
The country is determined by the Country parameter on the Sites – Edit Site page.
For an Available phone, the language is determined by the Language parameter on the Sites – Edit
Site page. For an assigned phone, the language is determined by the Language parameter on the
Users – Edit User page.
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