01.)       At ext. 10, lift handset or press SPK key
02.)       Press OPAC / CONF key
03.)       Press CLOCK key
04.)       Enter year (e.g., 1995)
05.)       Press *
06.)       Enter month and date (e.g., 0120 for January 20)
07.)       Press *
08.)       Enter number for day of week:
            0 - Sunday
            1 - Monday  
            2 - Tuesday
            3 - Wednesday
            4 - Thursday
            5 - Friday
            6 - Saturday
09.)       Press *
10.)    Enter time in terms of 24 hour clock (e.g., 1305 for 1:05 PM)
11.)    Press *
12.)    Hang up or press SPK key