One of my sites is experiencing a strange issue with the time displayed on the phones. I have a mix of 7975 and 7925 (wireless) phones. The clock on the CME router (2921, IOS 15.4 and CME 10.1) is correctly set because I have set it manually. It was previously set manually and had to be changed for Daylight Saving. The router is not visible to the internet (deliberately) so NTP does not play a part. So, I manually re-set the clock to British Summer time, save the change, go to telephony-service and create new cnf files. Great. Wait a few minutes but the times on the phones don't change. I'm sure if I reboot the phones they would then display the correct time. Same goes for the router as it seems to retain the clock settings following a re-boot. BUT... I want to understand why the re-set time is not pushed to the phones (all SCCP) automagically by the CME. Anyone got any ideas?