Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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DST Configuration
The following table lists the parameters you can use to configure DST.
Parameter local_time.summer_time
<y0000000000xx>.cfg
Description It configures the Daylight Saving Time (DST) feature.
Permitted
Values
0-Disabled
1-Enabled
2-Automatic
Default
2
Web UI
Settings > Time&Date > Daylight Saving Time
Phone UI
Color Screen Phones:
Menu > Basic > Time & Date > General > SNTP Settings > Daylight Saving
Black-and-white Screen Phones:
Menu > Settings > Basic Settings > Time&Date > SNTP Settings > Daylight Saving
Parameter local_time.dst_time_type
<y0000000000xx>.cfg
Description
It configures the Daylight Saving Time (DST) type.
Note: It works only if “local_time.summer_time” is set to 1 (Enabled).
Permitted
Values
0-DST by Date
1-DST by Week
Default
0
Web UI
Settings > Time&Date > Fixed Type
Parameter local_time.start_time
<y0000000000xx>.cfg
Description
It configures the start time of the Daylight Saving Time (DST).
Note: It works only if “local_time.summer_time” is set to 1 (Enabled).
Permitted
Values
Month/Day/Hour-DST by Date, use the following mapping:
Month: 1=January, 2=February,…, 12=December
Day: 1=the first day in a month,…, 31= the last day in a month
Hour: 0=0am, 1=1am,…, 23=11pm
Month/Week of Month/Day of Week/Hour of Day, Offset Days Forward-DST by Week, use the following
mapping:
Month: 1=January, 2=February,…, 12=December
Week of Month: 1=the first week in a month,…, 5=the last week in a month
Day of Week: 1=Monday, 2=Tuesday,…, 7=Sunday
Hour of Day: 0=0am, 1=1am,…, 23=11pm
Offset Days (Optional.): -1=one day offset forward, -2-two days offset forward,..., -6-six days offset for-
ward
Default
1/1/0
