OUT OF CYCLE MAINTENANCE

Scheduled for Aug 31, 20:00 - 20:30 MDT

Scheduled

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.

Outage: No

Posted Aug 14, 2026 - 09:33 MDT

This scheduled maintenance affects: Fax (CT Cloud Fax).