CallManager cluster restart will take place on July 12, 2017 22:00:00 – 23:00:00. There is no effect on phone service. All active calls will be preserved. All calls in progress will be preserved. All new calls during a brief 5-10 second window will need to be re-dialed.
Idle phones will be rebooted. This process can take up to 5 minutes. Typically it is less than 1 minute.