2.3 System Data Control250 Feature Guide2. Time Information from Telephone CompanyTime information can be received when– An incoming or outgoing call through an ISDN line is received/made.– An incoming call through an analog line with Caller ID which includes time information is received.The PBX clock will be adjusted everyday with the first call after 3:05 AM, if enabled through systemprogramming.NoteIf a Timed Reminder (Wake-up call) is set, the setting will not ring or will ring twice depending onthe adjustment.Conditions• Station Message Detail Recording (SMDR) will log call information using the PBX clock so that thelogging time will be overlapped at the end of Daylight Saving Time. (→ 1.23.1 Station Message DetailRecording (SMDR))Feature References1.25.4 Timed Reminder2.3.5 Flexible Numbering/Fixed NumberingDescriptionTo dial another extension user or to access PBX features, access numbers (extension numbers or featurenumbers) are required.There are three types of numbering plans:1) Flexible Numbering (available while a dial tone is heard)2) Flexible Numbering (available while a busy, DND, or ringback tone is heard)3) Fixed Numbering (available while dialing or talking)1. Flexible Numbering (available while a dial tone is heard)Extension numbers and feature numbers which are available while a dial tone is heard can becustomized for easy use (→ Flexible Numbering [100]). The numbers must not conflict. It is alsopossible to use the default numbering (Pattern 1 or Pattern 2) shown in the following table:a) Extension Numbers (Extension Numbering Scheme 1 through 32): Extension numbers canconsist of up to four digits. They consist of either a one- or two-digit leading number (0-9 or 00-99)and a one- or two-digit suffix (0-9 or 00-99). The default suffix is a two-digit number (00-99).[Example]If the number "3" is programmed as a leading number for the 1st extension numbering scheme,and "XX" is programmed as the additional digits, extension numbers 300 through 399 areavailable.b) Feature Numbers: Up to four-digit number consisting of 0–9, " ", and "#"
