Call Tower has active maintenance.

Where does Uptimus get the official Call Tower status?

Uptimus reads the official Call Tower status source and normalizes its incidents, maintenance windows and component states. The links below let you verify the provider information directly. Call Tower Status Page: https://calltower.statuspage.io Call Tower Home Page: https://www.calltower.com

Call Tower says it is up, but I am having issues. What could be wrong?

The official page may not yet reflect a new incident, the problem may affect only a small group of accounts or one region, or it may be local to your device, network, software or ISP. Check the affected components and community reports above, test another connection or device, and contact Call Tower support if the problem continues.

How can I check whether Call Tower is having issues?

Compare the normalized status and recent incidents on this page with the official provider source. Uptimus keeps official component changes, maintenance, community reports and recent incident details together so you can distinguish a broad outage from a local problem.

How to get notified about Call Tower outages?

Add Call Tower to your Uptimus workspace, then choose the event types and delivery channels you want to use. Depending on your plan and configuration, alerts can be sent by email, push, webhook or configured integrations for major outages, smaller issues, maintenance and recovery. If Call Tower exposes components, you can monitor all of them or restrict official alerts to the products your team uses.

Last checked Aug 27, 10:24 AM UTC

Call Tower status

Unified cloud communications for enhanced connectivity and productivity.

Experiencing an issue?

Is Call Tower down?

Maintenance

Source: official status page

Having issues with Call Tower?

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Call Tower service health graph

Service status and report activity over the last 24 hours, in 15-minute intervals. Early warnings and official incidents are shown separately.

No problems detected
Possible problems
Problems detected
Early warning
Official incident

Tap a bar to keep its details open. With the chart focused, use Left and Right to move between intervals, Home or End to jump, and Escape to close. Full data is available in the table below.

View chart data

15-minute report intervals · UTC
Start	End	Reports	Status

Latest activity

Last 24 hours

Official status checked
Call Tower has active maintenance
Official provider status
Aug 27, 10:24 AM UTC
Official maintenance active
OUT OF CYCLE MAINTENANCE — 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 [email protected]. Outage: No
Official provider status
Aug 14, 3:33 PM UTC

Call Tower outage reports

0 outage reports in the last 24 hours.

No recent outage reports

No community outage reports have been submitted for this service in the last 24 hours.

Call Tower outage map

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Component name	Status
Call Tower CT Cloud — CT Cloud SIP status	Up
Call Tower Cisco Unified Communications — Cisco Voice status	Up
Call Tower Contact Center — Clarity Connect status	Up
Call Tower Microsoft — Microsoft 365 status	Up
Call Tower Skype for Business — Skype for Business - Voice status	Up
Call Tower Fax — CT Cloud Fax status	Up
Call Tower CT Cloud — CT Cloud Voice status	Up
Call Tower Cisco Unified Communications — Cisco Jabber status	Up
Call Tower Contact Center — Five9 status	Up
Call Tower Skype for Business — Instant Messenger and Presence status	Up

Call Tower incident history

Official incidents, early warnings and community reports are identified separately. Early warning history covers only the last 24 hours. Dates use your time zone.

View more history

Incident name	Duration	StartedUTC	Acknowledged	Severity
Official statusResolved	25h 53m	Jul 15, 20264:39 PM UTC	Yes	Minor
Official statusResolved	100h 54m	Jul 9, 20269:57 AM UTC	Yes	Critical
Official statusResolved	1h 38m	Apr 29, 20265:22 PM UTC	Yes	Minor
Official statusResolved	3h 23m	Mar 2, 20264:52 PM UTC	Yes	Major
Official statusResolved	0m	Feb 20, 20267:15 PM UTC	Yes	Unknown
Official statusResolved	1h 6m	Feb 4, 20264:27 PM UTC	Yes	Unknown
Official statusResolved	0m	Jan 2, 20264:23 PM UTC	Yes	Unknown
Official statusResolved	19h 45m	Nov 4, 20256:43 PM UTC	Yes	Minor

Scheduled maintenance

Planned work published by the official provider.

OUT OF CYCLE MAINTENANCE
Maintenance
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 [email protected]. Outage: No
Started Sep 1, 2026, 02:00 AM UTC · Ongoing
OUT OF CYCLE MAINTENANCE
Resolved
The scheduled maintenance has been completed.
Started Aug 24, 2026, 04:00 AM UTC · Resolved Aug 24, 2026, 04:30 AM UTC
Scheduled Maintenance
Resolved
The scheduled maintenance has been completed.
Started Aug 22, 2026, 04:00 AM UTC · Resolved Aug 22, 2026, 10:00 AM UTC
OUT OF CYCLE MAINTENANCE
Resolved
The scheduled maintenance has been completed.
Started Aug 17, 2026, 04:00 AM UTC · Resolved Aug 17, 2026, 05:00 AM UTC
Out-Of-Cycle Maintenance
Resolved
The scheduled maintenance has been completed.
Started Jul 21, 2026, 05:00 PM UTC · Resolved Jul 21, 2026, 06:00 PM UTC
Scheduled Maintenance
Resolved
The scheduled maintenance has been completed.
Started Jul 18, 2026, 04:00 AM UTC · Resolved Jul 18, 2026, 10:00 AM UTC
Out-Of-Cycle Maintenance
Resolved
The scheduled maintenance has been completed.
Started Jul 13, 2026, 04:00 AM UTC · Resolved Jul 13, 2026, 05:00 AM UTC
Service Update: High-Risk Calling Destination Changes
Resolved
The scheduled maintenance has been completed.
Started Jul 7, 2026, 11:00 PM UTC · Resolved Jul 7, 2026, 11:10 PM UTC

About Call Tower monitoring on Uptimus

Uptimus monitors Call Tower through its official status source and normalizes published incidents, maintenance windows and component health into one consistent service status.

This page currently includes 43 monitored components, 51 indexed incidents, 55 maintenance windows and 12 days of known history.

Uptimus is an independent monitoring service and is not affiliated with Call Tower. A healthy status does not guarantee that every user, device or region is unaffected.

How Uptimus monitors Call Tower

Get notified when Call Tower or one of its monitored components reports a major outage or another critical service disruption. Alerts can be routed through the notification channels enabled for your workspace, including email, push and configured integrations. The available history contains 51 indexed incidents, giving each alert context beyond the current status. A recent indexed incident was “Dial by Name Function Failing”.

Get notified about degraded performance, partial impact and smaller incidents that do not represent a complete outage. Uptimus currently tracks 43 Call Tower components: CT Cloud SIP, Cisco Voice, Clarity Connect, Microsoft 365. Alerts can be routed through the notification channels enabled for your workspace, including email, push and configured integrations.

Maintenance notifications

Receive alerts when Call Tower publishes planned, scheduled or active maintenance affecting the service. Uptimus has indexed 55 maintenance windows from the available Call Tower history. Alerts can be routed through the notification channels enabled for your workspace, including email, push and configured integrations.

Recovery notifications

Know when Call Tower or an affected component returns to healthy operation after an issue or outage. The current page contains 12 days of known status history, while resolved events remain available for later review. Alerts can be routed through the notification channels enabled for your workspace, including email, push and configured integrations.

Status messages

Uptimus stores the incident headline published by Call Tower and presents it with the normalized service status. The available history contains 51 indexed incidents, giving each alert context beyond the current status. A recent indexed incident was “Dial by Name Function Failing”.

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