If you're really industrious you can download the phone console logs from the phone web page and search through the logs for any mention of ntp, drift, or sync.<br><br>I would hope the phones print something in there when they sync to an ntp source.<br>
<br><div class="gmail_quote">On Sat, May 9, 2009 at 12:01 AM, Bill Simon <span dir="ltr"><<a href="mailto:bills@psu.edu">bills@psu.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Wait. Hold up. NTP servers are in our default options on the DHCP server.<br>
<br>
Would it take NTP servers from the DHCP options?<br>
<br>
I have never read that the phones do that.<br>
<br>
I can try experimenting with the phones' scope in DHCP on Monday if this might be it. Either removing the NTP options or pointing to CUCM...<div><div></div><div class="h5"><br>
<br>
Bill Simon wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I'm not aware of any method to direct a SCCP-firmware phone to an NTP source. I have seen the option in the XML config file for a SIP load.<br>
<br>
So, no, not trying to circumvent CM as the time source. I'll check out the bug you noted.<br>
<br>
Thanks<br>
Bill<br>
<br>
Wes Sisk wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
We have had at least one report of this before. That issue appears associated to CSCsd54013. I don't necessarily agree with that.<br>
My recollection (questionable?) of this issue is that when 3rd gen phone are provided NTP server they ignore time from CM. If the phones cannot sync from NTP source for any reason then they drift.<br>
<br>
Are you attempting to provide NTP source to the phones via any means?<br>
<br>
/Wes<br>
<br>
On Friday, May 08, 2009 5:10:44 PM, Bill Simon <<a href="mailto:bills@psu.edu" target="_blank">bills@psu.edu</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Running CM 4.1.3 with NTP configured on all servers to sync to two reliable NTP sources and peer with each other for verification.<br>
<br>
I run ntpq and check each server and all are synced up.<br>
<br>
My 7940s and 7960s are right on time. But newer phones, 7961, 7965 and 7906 are anywhere from 5 to 10 seconds slow.<br>
<br>
I am aware that older phones used SCCP messages to sync time, and newer phones appear to use a different method. SIP firmware loads use NTP; what do SCCP firmwares use?<br>
<br>
Even after a **#** reset, the phone's time is lagged.<br>
<br>
Is this a defect of the Java-based firmware, or do I have another issue within the system causing the lag in the time displayed on the newer phones?<br>
</blockquote></blockquote></blockquote>
_______________________________________________<br>
cisco-voip mailing list<br>
<a href="mailto:cisco-voip@puck.nether.net" target="_blank">cisco-voip@puck.nether.net</a><br>
<a href="https://puck.nether.net/mailman/listinfo/cisco-voip" target="_blank">https://puck.nether.net/mailman/listinfo/cisco-voip</a><br>
</div></div></blockquote></div><br>