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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">There used to be a defect where ATAs with only one line configured/registered would deregister due to the second line constantly attempting to download a configuration.
I am not sure if it only impacted the 18X or not though . . . I’ll try to find an article.<o:p></o:p></span></p>
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<p class="MsoNormal" style="line-height:12.0pt"><span style="font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D">Rob<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> cisco-voip [mailto:cisco-voip-bounces@puck.nether.net]
<b>On Behalf Of </b>Ryan Huff<br>
<b>Sent:</b> Monday, March 23, 2015 9:20 AM<br>
<b>To:</b> Alessandro Bertacco; cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] ATA190 Random De-Register from CUCM 10.5.2<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-family:"Calibri","sans-serif"">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 <o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-family:"Calibri","sans-serif"">From:
<a href="mailto:bertacco.alessandro@alice.it">bertacco.alessandro@alice.it</a><br>
To: <a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
Date: Mon, 23 Mar 2015 11:28:44 +0100<br>
Subject: [cisco-voip] ATA190 Random De-Register from CUCM 10.5.2<o:p></o:p></span></p>
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<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Calibri","sans-serif"">Hi Guys,</span><span style="font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Calibri","sans-serif""> 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><span style="font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Calibri","sans-serif""> </span><span style="font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Calibri","sans-serif"">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><span style="font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Calibri","sans-serif""> </span><span style="font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Calibri","sans-serif"">Thank you all</span><span style="font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Calibri","sans-serif""> </span><span style="font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Calibri","sans-serif"">Regards</span><span style="font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Calibri","sans-serif""> </span><span style="font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-family:"Calibri","sans-serif";color:#1F497D">Alessandro Bertacco</span><span style="font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-GB" style="font-family:"Calibri","sans-serif""> </span><span style="font-family:"Calibri","sans-serif""><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Calibri","sans-serif""><br>
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