Cisco: - Update mra.ct450.com and mra-02.ct450.com latest release ***Possible Impact: Cisco Edge Phones: CallTower will be loading a Public Certificate to all Edge servers for mra.ct450.com and mra02.ct450.com . Phones are expected to be down for no more than a few minutes and should connect as usual once servers are restarted.
Outage: No
Webex: - car1.lon & car1.fra cleanup ***Possible Impact: Webex customers may experience brief interruption of active calls when changes are made
Outage: No
Fax: - MasterFax - Isolate MP202B traffic ***Possible Impact: Some MasterFax ATAs may experience a brief interruption as devices reconnect to our Fax Servers during the Maintenance Window
Outage: Yes
ATL Meta Customers: - ATL Meta - May 2026 maintenance ***Possible Impact: New calls may fail to setup while services are failed over during maintenance. Calls in progress will not be affected. Downtime will be 30 seconds or less.
Outage: Yes
CT Cloud Communicator: - CT Cloud Communicator Mobile 3.21.61 ***Possible Impact: CT Cloud Communicator Mobile users will be forced to upgrade to v3.21.61 to continue using the application.
As a reminder, users currently using CTCC mobile pre-3.21.61 must perform a one-time manual upgrade, or in-app upgrades will fail. Additional information about this is available in uc.solutions.