From any display phone handset press the Transfer key and then dial 200.
1. Enter the 4 digit passcode (1234)
2. Next Press 1 to for display; Enable CUS. PROG. – ENABLE, then Press the Transfer Key (TRSF).
3. Press TRSF and then Dial 505 to Enter the Time & Date Program.
4. Enter the Date and Time using the following format.
5. The Time and Date format is as follows:
W (Day of the week, 0-6): Enter 0 for Sunday and 6 for Saturday.
MM (Month, 01-12): Enter 01 for January and 12 for December.
DD (Day of the Month): Enter a the day using 01–31.
YY (Year): Enter the last two digits of the year.
HH (Hours): Use a 24-hour clock with the time in the range 00–24.
MM (Minutes): Enter minutes using 00–59.
6. Next Press the Transfer Key (TRSF) to Save the new Date and Time