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<p>Hey Ben,</p>
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<p>This has less to do with UCCX and more to do with the lack of time precision in Windows SNTP / NTP compared to the needs of UCOS. Yes, I know, die hard Redmond boys and girls will say that ever since Win2003 that isn't the case but sorry, it is. (read:
<a class="OWAAutoLink" href="https://technet.microsoft.com/en-us/library/cc773013%28v=ws.10%29.aspx">
https://technet.microsoft.com/en-us/library/cc773013%28v=ws.10%29.aspx</a>). In fact, on page 84 (PDF page) of the latest SRND (<a class="OWAAutoLink" href="http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab11/collab11.pdf">http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/srnd/collab11/collab11.pdf</a>)
Windows NTP is a flat nono for Cisco UC period.</p>
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<p>IOS routers are great but here is how I like to roll (excuse the crudeness of the drawing, put it together this morning before coffee). I typically use Linux servers for NTP because they are so darn useful for other utilitarian things ..... can't count how
many times just having a Linux box on the network somewhere helped me out.</p>
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= Ryan =
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<div id="divRplyFwdMsg" dir="ltr"><font color="#000000" face="Calibri, sans-serif" style="font-size:11pt"><b>From:</b> cisco-voip <cisco-voip-bounces@puck.nether.net> on behalf of Ben Amick <bamick@HumanArc.com><br>
<b>Sent:</b> Monday, May 8, 2017 10:12 AM<br>
<b>To:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> [cisco-voip] CCX and NTP</font>
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<span style="font-size:12.0pt">What do you guys use for NTP on your CCX hosts? I’ve been informed by TAC that “CCX does not support Windows based NTP” so I was thinking about just pointing NTP towards my CCM hosts – is that a valid scenario? I figure that since
CCM is pretty much authoritative on everything for CCX as it is it wouldn’t be a problem?</span></p>
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<b><span style="font-size:10.0pt; font-family:"Garamond",serif; color:#3B3838">Ben Amick</span></b></p>
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<span style="font-size:9.0pt; font-family:"Garamond",serif; color:#3B3838">Telecom Analyst</span><span style="font-size:9.0pt; font-family:"Garamond",serif; color:#666666"></span></p>
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