Yealink CP860 [66/417] Daylight saving time

Administrator’s Guide for CP860 IP conference phones

3. Press the or soft key to select the desired type from the Lock type field.

4. Press the Save soft key to accept the change.

To configure the unlock PIN via phone user interface:

1. Press Menu->Settings->Basic Settings->Phone Unlock PIN.

2. Enter the current unlock PIN in the Current PIN field.

3. Enter the new unlock PIN in the New PIN field.

4. Enter the new unlock PIN again in the Confirm PIN field.

5. Press the Save soft key to accept the change.

IP phones maintain a local clock and calendar. Time and date are displayed on the idle

screen of the IP phone. Time and date are synced automatically from the NTP server by

default. The NTP server can be obtained by DHCP or configured manually. If IP phones

cannot obtain the time and date from the NTP server, you need to manually configure

them. The time and date display can use one of several different formats.

Time Zone

A time zone is a region on Earth that has a uniform standard time. It is convenient for

areas in close commercial or other communication to keep the same time. When

configuring IP phones to obtain the time and date from the NTP server, you must set the

time zone.

Daylight Saving Time

Daylight Saving Time (DST) is the practice of temporary advancing clocks during the

summertime so that evenings have more daylight and mornings have less. Typically,

clocks are adjusted forward one hour at the start of spring and backward in autumn.

Many countries have used the DST at various times, details vary by location. The DST

can be adjusted automatically from the time zone configuration. Typically, there is no

need to change this setting.

The following table lists available methods for configuring time and date:

Option

Methods of Configuration

Time Zone

Configuration Files

Web User Interface

Phone User Interface

Time

Web User Interface

Phone User Interface