Section 700 - Operation Chapter 3. System FeaturesS-ICX-50-700 S-ICX (International) issued October 2000 33Daylight Saving Time (Summer Time)CPC Version 4.5 and higherDescriptionThe Daylight Saving Time feature allows you to program the S-ICX so that it automatically adjuststhe system’s internal timeclock forward or back on specific days of the year. This time change is thenreflected on the phone’s display (Key Telephone only).Depending on the day of the year, the system will set the time according to the following:Hardware Requirements• N/ARelated Programming• N/AConsiderations• Daylight Saving Time can only be enabled or disabled in system programming. See Section 400:Programming for more information.Day/Night System ModeDescriptionDay/Night System Mode enables you to switch the System between two Day modes and a Nightmode. These modes determine incoming call handling, Toll Restriction Service (TRS) (Call Barring)call handling, and attendant group support.While in a Night mode (generally used at night or any time when your office is closed), incomingcalls can ring at selected extensions (e.g., a night watchman’s extension or an extension connected toan answering machine). Outbound calls can be restricted to certain phones. Calls can be directed to anight-time attendant group instead of the normal daytime attendant group.The System provides one Night mode for night call handling. However, there are three night featureaccess codes (Night, Night 1, and Night 2). These three codes may be used to provide different two-way Voice Mail messages (i.e., Night may select one message, Night 1 may select a differentmessage, and Night 2 may select a third message.)Typically, the Day mode is used for normal call processing of outside calls, TRS (Call Barring) calls,and attendant calls. The second day mode (Day 2) may be used for alternative call handling such asduring a lunch break, etc.There are two ways to change day/night service modes:• Manually• AutomaticallyDay of the year System ActionThird Sunday in March System clock adds one hour to current time at 2 a.m.Last Sunday in October System clock subtracts one hour from current time at 2 a.m.