<div dir="ltr">I am doing my first CUCM upgrade (from version 8.6.2 to 8.6.2a su3) and I wanted a sanity check on my planned process:<div><ol><li>Verify latest backups were successful via Disaster Recovery System / Backup / History</li>
<li>Insert DVD into Publisher</li><li>Login to CUC OS Administration </li><li>Navigate to Software/Upgrades/Install Upgrade</li><li>Choose the DVD, enter "/" in the directory field, and click next</li><li>Select the upgrade version I am installing (8.6.2a su3)</li>
<li>Choose "Do not switch to new version after upgrade"</li><li>Click Finish once the install is completed</li></ol><div>At that point I will accomplish the same upgrade steps on the Subscriber, again selecting "Do not switch to new version after the upgrade". Once that system is completed I will use Settings / Version / Switch Version on the Publisher. From what I read it takes around 15 minutes for the system to stabilize. Once all of the services are back online on the Publisher I will choose Settings / Version / Switch Version on the Subscriber.</div>
</div><div><br></div><div>After the Subscriber comes back online I will:</div><div><br></div><div><ol><li>Verify database replication using Cisco Unified Reporting / Unified CM Database Status Report</li><li>Check to make sure all of my phones, media resources, gateways, CTI devices, and SIP trunks are registered and online</li>
<li>Make test calls to voicemail, a CCX application, extension to extension, and extension to external to make sure everything is working.<br></li></ol></div><div>Do you see anything that I am missing and of course thanks for any advice!<br>
</div><div><br></div><div>-Rob</div></div>