To upgrade to the latest service pack, login to the 3CX Management Console, click on Updates, 3CX Service Pack Updates and download Service Pack 2.
If you fail to upgrade to the latest service pack 2 your PBX will notify you with this error message: “License error number 60 LIC_ERR_FAILED_CERTIFICATE_CHECK”. In order to resolve this issue please send an email including your 3CX License key to email@example.com. You will receive a reply within minutes with instructions on how to upgrade to the latest Service Pack.
For more information refer to this blog post.
We would strongly recommend that all users take advantage of our upgrade offer and upgrade to V14 before the year end. It’s always best to run the latest version of 3CX Phone System which includes the latest features and security updates.
Version 14 includes many new features such as the new iOS, Android and Windows Phone 10 clients, the option to use 3CX as a Hosted PBX, as well as new management features which enable easier backup and restore.