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<body class='hmmessage'><div dir='ltr'>I've used the ATA190 and it's family of 18X pretty often. In the case of the SIP devices like the 190 or 187 I have always been able to use the default SIP Profile settings; of course I'm generally dealing with vanilla networks and CCM's built very closely to the SRND.<br><br>Here is where I would start (if you haven't already):<br><br>What do you have the <i>device security mode</i> set to? If you have it
set to Authenticated or Encrypted but it has not received a CTL file, the
phone will attempt registration up to four times to make a secure
connection.<br><br>Are the MAC addresses for <i>Phone 1</i> and <i>Phone 2</i> correct (<i>Phone 2</i> will usually loose the first two characters and append a 01 at the end of the device name). If you support auto registration, remove the devices and let them auto register and see if they stabilize.<br><br>Any layer 1/2 issues (change out the patch cable, check the connection into the switchport ... etc)? Do you see any interface drops on the switchport? Is the switchport full duplex 10/100 or 10/1000? Have you shut/no shut the port just to see if clearing the port helps?<br><br>Go through the IVR menu on the ATA itself and verify that it reports all the same settings that you CCM device configs show. <a href="http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cata/190/1_0/english/administration/guide/sip/ATA190/a190_agBcd.html" target="_blank">http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cata/190/1_0/english/administration/guide/sip/ATA190/a190_agBcd.html</a><br><br>Thanks,<br><br>Ryan <br><br><div><hr id="stopSpelling">From: bertacco.alessandro@alice.it<br>To: cisco-voip@puck.nether.net<br>Date: Mon, 23 Mar 2015 11:28:44 +0100<br>Subject: [cisco-voip] ATA190 Random De-Register from CUCM 10.5.2<br><br><style><!--
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--></style><div class="ecxWordSection1"><p class="ecxMsoNormal"><span lang="EN-GB">Hi Guys,</span></p><p class="ecxMsoNormal"><span lang="EN-GB"> ATA190 FW version 1.1.2.(005) with CUCM 10.5.2.10000-5, de-register randomly, and need to reboot the device to re-register again on the CUCM.</span></p><p class="ecxMsoNormal"><span lang="EN-GB"> </span></p><p class="ecxMsoNormal"><span lang="EN-GB">Anyone as the same issue? Do you use a special SIP Device profile changing some timings, or you are using standard SIP Device Profile?</span></p><p class="ecxMsoNormal"><span lang="EN-GB"> </span></p><p class="ecxMsoNormal"><span lang="EN-GB">Thank you all</span></p><p class="ecxMsoNormal"><span lang="EN-GB"> </span></p><p class="ecxMsoNormal"><span lang="EN-GB">Regards</span></p><p class="ecxMsoNormal"><span lang="EN-GB"> </span></p><p class="ecxMsoNormal"> </p><p class="ecxMsoNormal" style="background:white;"><span style="color:#1F497D;">Alessandro Bertacco</span><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#222222;"></span></p><p class="ecxMsoNormal"><span lang="EN-GB"> </span></p></div><br>_______________________________________________
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