Completed -
The scheduled maintenance has been completed.
Jan 26, 04:00 MST
In progress -
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jan 25, 22:00 MST
Scheduled -
CT Cloud Voice - January 2026 maintenance
Purpose: Renew APNS certs for AMS, EAS and Perimeta
Systems Affected: CT Cloud Voice
Impact: Users with CT Cloud Communicator for iOS will need to log back into the application
Outage: Yes
CT Cloud Communicator - Mandatory update to v3.21.60 Purpose: This version removes CT Cloud Meeting, which has been decommissioned (and no longer functions) 2. Security updates and bug fixes
Systems Affected: CT Cloud Voice
Impact: Users with CT Cloud Communicator will be forced to upgrade to v3.21.60.
Desktop users will be notified in-app if they are not already using v3.21.60 and forced to upgrade to v3.21.60 before they can continue using the app.
***Mac OS users: If CTCC hangs or freezes after update, follow these steps: 1. Uninstall the app from Applications 2. Open Finder and navigate to Go -> Go to folder -> type "~/Library/ApplicationSupport and press go. Remove anything with "CT Cloud" in the name. 3. Open Finder and navigate to Go -> Go to folder -> type "~/Library/Caches and press go. Remove anything with "CT Cloud" in the name. 4. Install CTCC 3.21.60 from CommPortal
Mobile users can check and update their current version in the respective app store on their phone. These users will be prompted and forced to upgrade to v3.21.60 before they can continue using the app.
Completed -
The scheduled maintenance has been completed.
Jan 24, 04:00 MST
In progress -
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jan 23, 22:00 MST
Scheduled -
Upgrade collaborate.ct450.com to V15.3.2
Purpose: Upgrade of collaborate.ct450.com which is 15.3 to 15.3.2 . According to Cisco there are bug fixes that are addressed
Systems Affected: *Cisco Jabber
Impact: Calltower will be upgrading the Edge servers for Jabber. Users will experience a connectivity loss with their Jabber Client/Services.
Outage: Yes
Regen CUPs Server Certs Clusters 00,02 and 10
Purpose: Calltower will be updating certificates for the CIsco CUPS servers for Jabber.
Systems Affected: *Cisco Jabber
Impact: Jabber Clients will receive a Certificate Warning. Please be aware that this is expected behavior and all users will need to accept this before signing back in.
Outage: No
HCS Server Certificate Renewal - Reboot
Purpose: Server Reboots of the HCS Cisco Unified Communications Manager will occur.
Systems Affected: *Cisco Call Manager - HCS
Impact: User phones will re-register to the next server in the Server list. Calls in progress 'should' remain up until the call has ended. Phone will most likely re register multiple times during the MW time. This is expected behavior.
Outage: No MasterFax & CT Cloud Fax - General Server Maintenance
Purpose: Monthly server maintenance: remove old/stuck faxes, reboot servers
Systems Affected: *MasterFax & CT Cloud Fax
Impact: Customers will experience interruptions to both MasterFax and CT Cloud Fax services during the Maintenance Window