hi
I think the problem lies in your 7940 SIPDefault.cnf, have you specefied the settings for Time Server
i.e.
#Time Server
sntp_mode: "DirectedBroadcast"
sntp_server: "ntp server address"
time_zone: "GMT"
dst_offset: "1"
dst_start_month: "March"
dst_start_day: 0
dst_start_day_of_week: "Sunday"
dst_start_week_of_month: "3"
dst_start_time: "02"
dst_stop_month: "Oct"
dst_stop_day: 0
dst_stop_day_of_week: "Sunday"
dst_stop_week_of_month: "3"
dst_start_time: "02"
dst_auto_adjust: "1"
time_format: "24"
date_format: "D/M/Y"
I use this format and all my Cisco 7940G's (15 of them) report the time and date of any missed calls.
Hope this helps
Tim