I have CUCM ver 184.108.40.206, I try to enable it to update from SNTP server via Cisco Unified OS Administration/Settings/NTP and in the NTP Servers List I add the SNTP Server IP and upon saving I get the message "The NTP service not accessible.". is there any other setting I should set to allow this work?
I'd like to thank you so much for your response and Ihave another question
(I already set the NTP server and the CUCM can access it but the phone devices are not updated with the NTP server time). How I adjust the Poll Interval (every how many minutes I get updater from the NTP server)?
The Date/Time group is already set to the correct time zone and used by the proper Device Pool but, already there's about 3 minutes difference between the NTP server time and the time shown on the phone devices.
is there any way to attach the NTP Server to the Date/Time group used or there is no need for this?
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