BG Unified Solutions team have successfully upgraded its mega Cisco Call Manager cluster from version 10.5.1 to 12.0.1.SU1. This was not an easy job. With so many dependencies/clients, making it happen without any downtime to any of the end users.

All UCCX applications, CUC and CUPS integrations tested. CDR reporting is working absolutely normal. Informacast is working perfectly fine. Such an amazing job.

The whole solution got backed up before and after upgrade to handle any catastrophic issues after the upgrade. Well done team ! ! ! !