Configuring Regional Parameters and Supplementary Services
Localizing Your IP Phone
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 208
7
Managing the Time and Date
Cisco IP phones obtain the time settings in one of three ways:
• NTP Server—When the phone boots up, it tries to contact the first Network
Time Protocol (NTP) server to get the time. The phone periodically
synchronizes its time with the NTP server. The synchronization period is
fixed at 1 hour. Between updates the phone tracks time with its internal
clock.
• SIP Messages—Each SIP message (request or response) sent to the phone
could contain a Date header with the current time information. If the header
is present, the phone uses it to set its clock.
Time Zone Selects the number of hours to add to GMT to generate the
local time for caller ID generation. Choices are GMT-12:00,
GMT-11:00,…, GMT, GMT+01:00, GMT+02:00, …,
GMT+13:00.
Defaults to GMT-08:00.
Time Offset (HH/
mm)
Enter the offset from GMT to use for the local system time.
Daylight Saving
Time Rule
Enter the rule for calculating daylight saving time. See
Configuring Daylight Saving Time.
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 Creating a
Dictionary Server Script.
Language
Selection
Specifies the default language. The value must match one
of the languages supported by the dictionary server. The
script (dx value) is:
<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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