we are using CUCM 6.1(2) with some 7965 and a lot of 7960/40.
All 7940/60 have correct time at its display, only the 7965 are between 3 and 10 seconds behind the cucm-time.
After booting a 7965 it is in sync with CUCM time.
It seems that the 7965 only syncs time when rebooting (power off/on).
Anyone with this problem?