MasterFax - Sunset End-of-Service ATAs (SN prefix: D)
Purpose: Sunset MP202B devices as prerequisite of future security update. Systems Affected: CT Cloud Fax (MasterFax) Impact: Legacy MP202B ATAs will no longer be able to connect to our MasterFax servers after the maintenance window. If your ATA's serial number starts with "D" and you have not arranged temporary continued access through our Client Success team, please contact accountmanagement@calltower.com.
Completed -
The scheduled maintenance has been completed.
Aug 22, 04:00 MDT
In progress -
Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 21, 22:00 MDT
Scheduled -
Reboot Call Manager Environment
Purpose: Reboot all clusters and nodes inside clusters
Systems Affected: Cisco Call Manager:
Impact: Server Reboots of the Cisco Unified Communications Manager will occur. Your phone 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
NOAM CT Cloud August 2026 maintenance
Purpose: Transfer CFS and EAS service for NOAM Meta from CHI to DAL
Systems Affected: CT Cloud SIP and Voice
Impact: New calls attempted during service transfer may fail to setup, calls in progress will not be affected. Any failed calls should be re-tried.
Downtime will be 5 minutes or less while services are transferred to redundant servers for monthly maintenance. 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.
Systems Affected: CT Cloud Voice users with SMS Impact: - Users may need to log back into CT Cloud Communicator. Downtime will be 5 minutes or less while the new certificate is loaded.
Outage: Yes
We apologize for the short notice.
Aug 14, 09:28 MDT