Vertical SBX IP 320 Setting Time and Date
The attendant station (usually Station 100) is the only station that can change the time and date of the telephone system.
From Station 100, while on-hook (handset is on cradle):
Press TRANS/PGM button
Dial 0 4
Display reads: date and time
Press 1
Display reads: change system date and time
Date = enter mmddyy (mm = month, dd = day, yy = year)
Press HOLD/SAVE button
Enter time = hhmm (hh = hour in military time, mm = minutes)
Press HOLD/SAVE