I have a 16SC Pro perpetual license that expires in 2 days (Aug 30th). I was about to purchase maintenance for the next year... but now have decided that we want to upgrade to an Enterprise license to take advantage of failover. Just wondering the best way to go about this? Do I need to buy the license upgrade before it expires in 2 days? From a technical perspective: We have our current Windows 3CX server running on AWS EC2 in Portland. Backups are being made to Google drive. I'm planning on installing our failover server on AWS EC2 in Canada. All of our 3CX clients are in various locations around the web. I've read through the 3CX failover docs online. I assume that I'll be able to upgrade the license on the current server, install the second server and configure it for failover without too much difficulty? This isn't a "weird" configuration?