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hi,</div>
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we have one of our customer having cucm version System version: 10.5.1.10000-7. there is one pub and two sub. phone registered with sub1 are stable and not having any issue. but from yesterday phones which are registered with sub2 are unregistering and re-registering
(around 4~6 hour gap).</div>
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on RTMT, i am seeing following critical warnings.</div>
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following happened 4:21am</div>
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<img size="153820" contenttype="image/png" unselectable="on" tabindex="-1" style="user-select: none; width: 1767px;" data-imgsize="original" data-outlook-trace="F:1|T:1" src="cid:e9a15fe0-b4cd-4608-b0e9-2562913ec51c"><br>
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following happened 9:30am</div>
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<img size="181754" contenttype="image/png" unselectable="on" tabindex="-1" style="user-select: none; width: 1769px;" data-imgsize="original" data-outlook-trace="F:1|T:1" src="cid:f09c8dfb-2dc3-4eff-ba6d-9a7e9d047091"><br>
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following happened 12:21pm</div>
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<img size="229436" contenttype="image/png" unselectable="on" tabindex="-1" style="user-select: none; width: 1757px;" data-imgsize="original" data-outlook-trace="F:1|T:1" src="cid:bce40d6a-c8f0-4cbd-9812-a8e69501dcf4"><br>
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and after critical alert, phones unregistered and registered. for example see following.</div>
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<img size="628526" contenttype="image/png" unselectable="on" tabindex="-1" style="user-select: none; width: 1662px;" data-imgsize="original" data-outlook-trace="F:1|T:1" src="cid:3279b512-e401-4bd2-9ddf-b2ce65cdda30"><br>
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i searched for the error and found following bug but affected release is 8 and was resolved later</div>
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<a href="https://bst.cloudapps.cisco.com/bugsearch/bug/CSCub54349/?rfs=iqvred" id="LPlnk591407">https://bst.cloudapps.cisco.com/bugsearch/bug/CSCub54349/?rfs=iqvred</a></div>
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any suggestions?</div>
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Regards</div>
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Naray<br>
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