Re: IP Phones' time Not synchronized with NTP server
Thank you Mohammad,
I tried to apply the document you gave to me, useless !
Is there anyway to remove the NTP completely and use the Call Manager time, without any synchronization with any other server? in other worlds, all the extensions will read time/date from call manager itself ?
Hope your problem is resolved. Bit late to respond you but I think other friends will try my advice if they happen to get the above problem.
In my setup, i didnt specified anything as the NTP preference. I used to Update the timings in our Core switch which I configured as the NTP server and all other Switches, Routers and call Manager as the NTP client for the Core Switch.
However, the reason why i came to this blog, we have rencetly installed dedicated, Sync Server which uses GPS to update the timings.
And right now Im pointing every device of mine towards the new NTP server.
How I added the New NTP configuration in Call Manager?
I went to Cisco Unified Operating System Administration, in Settings and NTP Server, go to Add New, Add the new IP address of the new NTP Server, Save....I have deleted the old NTP IP Addresses.
I dont have anything in the NTP preference since im using the only NTP server IP Address.
After half an hour, still the IP Phones didnt sync with NTP server.
However, whenever users are receiving calls on their IP Phone, it seems to refresh NTP timings with the new NTP server.
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The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
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