Configuring Regional Parameters and Supplementary Services
Localizing Your IP Phone
Cisco Small Business SPA 300 Series, SPA 500 Series, and WIP310 IP Phone Administration Guide 169
7
Managing the Time and Date
Cisco IP phones obtain the current time information in one of three ways:
• NTP Server—You can configure one or two NTP servers on the phone.
When the phone first boots up, it tries to contact the first NTP server to get
the current time. The phone periodically synchronizes its time with the NTP
server. The synchronization period is fixed at 1 hour. In between updates,
the phone tracks time with its own internal clock.
• SIP Messages—Each SIP message (request or response) sent to the phone
may contain a Date header with the current time information. If the header is
present, the phone uses it to update its current time.
• Manual Setup—The phone also lets you manually enter the current time and
date from the phone GUI or the configuration utility. However, this value is
overridden by the NTP time or SIP Message Date whenever they are
available to the phone. Manual setup requires you to enter the time in 24-
hour format only.
Daylight Saving
Time Rule
Enter the rule for calculating daylight saving time. See the
“Configuring Daylight Savings Time” section on page 170.
Daylight Saving
Enable
Select yes to enable or no to disable DST on the phone. This
setting affects all lines (extensions) on the phone.
Dictionary Server
Script
Defines the location of the dictionary server, the languages
available and the associated dictionary. See the “Creating a
Dictionary Server Script” section on page172.
Language
Selection
Specifies the default language. The value must match one of the
languages supported by the dictionary server. The script (dx
value) is as follows:
<Language_Selection ua="na">
</Language_Selection>
Defaults to blank; the maximum number of characters is 512. For
example:
<Language_Selection ua="na"> Spanish
</Language_Selection>
Field Description
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