| Change Control Event | The purpose of the Change is to upgrade ACH Cisco CUC Cisco Unity Connection voicemail system. Prep for upgrade need to add a SHA512 file to CUC servers | Change Control Event | The purpose of the Change is to upgrade ACH Cisco CUC Cisco Unity Connection voicemail system. Prep for upgrade need to add a SHA512 file to CUC serversCHG0069259 2023-02-20 20:00:00 – 2023-02-21 00:00:00The purpose of the Change is to upgrade ACH Cisco CUC Cisco Unity Connection voicemail system. Prep for upgrade need to add a SHA512 file to CUC servers