All Systems Operational

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Welcome to CallTower's home for real-time system status updates. Here you will find a current and historical data on system performance.

Cisco Unified Communications Operational
Cisco Voice Operational
Cisco Jabber Operational
VoiceCube Operational
Attendant Console Operational
Cisco Webex Calling Operational
CT Text Operational
CT Cloud Operational
CT Cloud SIP Operational
CT Cloud Voice Operational
Attendant Console Operational
CT Cloud Meeting Operational
Microsoft Operational
Microsoft 365 Operational
Microsoft Teams - Direct Routing Operational
Microsoft Operator Connect Operational
CT Text Operational
Contact Center Operational
Clarity Connect Operational
Five9 Operational
Intermedia Operational
Cisco Webex Contact Center Operational
Solgari Operational
Global SIP Trunk Operational
Hosted Cloud Based PBX Operational
Zoom Operational
CallTower Connect Operational
Fax Operational
CT Cloud Fax Operational
Concord E-Fax Operational
Concord ATA Fax Operational
eComFax Operational
Skype for Business Operational
Skype for Business - Voice Operational
Instant Messenger and Presence Operational
Attendant Console Operational
WFM (Alvaria) Operational
Talk Desk Operational
Genesys Cloud Operational
Genesys Cloud (US East) Operational
Genesys Cloud (US West) Operational
Genesys Cloud (Canada) Operational
Genesys Cloud (FedRAMP) Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance

Scheduled Maintenance

OUT OF CYCLE MAINTENANCE Sep 4, 2026 14:00-20:00 MDT

CallTower will be conducting emergency maintenance affecting Cisco Webex services.

Purpose: Cisco Webex infrastructure to improve service stability and reliability.

Impact: Service impact is expected to be minimal. During the implementation of changes, any active Cisco Webex calls may be disconnected. Redundant routing has been put in place to minimize further impact throughout the maintenance window.

Systems Affected:
Cisco Webex Calling Services

Outage: No
Posted on Sep 03, 2026 - 15:22 MDT

Sep 3, 2026

No incidents reported today.

Sep 2, 2026

No incidents reported.

Sep 1, 2026

No incidents reported.

Aug 31, 2026

OUT OF CYCLE MAINTENANCE
Completed - The scheduled maintenance has been completed.
Aug 31, 20:30 MDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 31, 20:00 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
Aug 14, 09:33 MDT

Aug 30, 2026

No incidents reported.

Aug 29, 2026

No incidents reported.

Aug 28, 2026

No incidents reported.

Aug 27, 2026

No incidents reported.

Aug 26, 2026

No incidents reported.

Aug 25, 2026

No incidents reported.

Aug 24, 2026

No incidents reported.

Aug 23, 2026

OUT OF CYCLE MAINTENANCE
Completed - The scheduled maintenance has been completed.
Aug 23, 22:30 MDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 23, 22:00 MDT
Scheduled - NOAM CT Cloud Voice - Test CommPortal and SIP PS failover

Purpose: Test failover between CT2CHIWAF01 and CT2DALWAF01

Systems Affected:
CT Cloud Voice

Impact: Users may need to log back into CommPortal and/or CT Cloud Communicator

Outage: Yes
Aug 14, 09:38 MDT

Aug 22, 2026

Scheduled Maintenance
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.

Outage: Yes
Aug 14, 09:36 MDT

Aug 21, 2026

Aug 20, 2026

No incidents reported.

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