Live CallTower status. See if CallTower is down, view recent outages, and get real-time alerts when problems start.
CallTower is operational
IsDown pulls data from CallTower's status page every few minutes and collects user-reported issues. Refresh the page to see if there are any updates.
This chart displays the number of user-reported issues over the past 24 hours, grouped into 20-minute intervals. It's normal to see occasional reports, which may be due to individual user issues rather than a broader problem. We only consider an issue widespread if there are multiple reports within a short timeframe.
IsDown has tracked 120 incidents since started monitoring CallTower status in October 2022. We collect data from 4200+ services, and normalize the data to give you a clear picture of the impact of the outage.
1 day ago · lasted about 1 hour
CallTower is investigating multiple reports of outbound calls failing for SIP trunking customers. *CallTower has opened a master case to investigate this issue as it has been reported by more than one CallTower customer. This issue may or may no...
2 days ago · lasted 1 day
CallTower is investigating reports of customers not being able to log into the CT Cloud Communicator desktop application. *CallTower has opened a master case to investigate this issue as it has been reported by more than one CallTower customer. ...
20 days ago · lasted about 24 hours
CallTower is currently investigating reports of an intermittent issue where Microsoft Teams call queues fail to properly receive inbound calls, instead triggering an immediate outbound call to the original caller. We are actively working with Mic...
We've tracked and collected 120 incidents since started monitoring CallTower status
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CallTower isn't down. You can check CallTower status and incident details on the top of the page. IsDown continuously monitors CallTower official status page every few minutes. In the last 24 hours, there were 0 outages reported.
CallTower is currently operational. You can check CallTower status and incident details on the top of the page. The status is updated in almost real-time, and you can see the latest outages and issues affecting customers.
No, there is no ongoing official outage. Check on the top of the page if there are any reported problems by other users.
Currently there's no report of CallTower being slow. Check on the top of the page if there are any reported problems by other users.
IsDown monitors the CallTower official status page every few minutes. We also get reports from users like you. If there are enough reports about an outage, we'll show it on the top of the page.
CallTower last outage was on May 19, 2025 with the title "Outbound Calls Failing for CT Cloud SIP Customers"
Because IsDown is a status page aggregator, which means that we aggregate the status of multiple cloud services. You can monitor CallTower and all the services that impact your business. Get a dashboard with the health of all services and status updates. Set up notifications via Slack, Datadog, PagerDuty, and more, when a service you monitor has issues or when maintenances are scheduled.
IsDown and DownDetector help users determine if a service is having problems. The big difference is that IsDown is a status page aggregator. IsDown monitors a service's official status page to give our customers a more reliable source of information. The integration allows us to provide more details about the outage, like incident title, description, updates, and the parts of the affected service. Additionally, users can create internal status pages and set up notifications for all their third-party services.
IsDown offers an easy way to monitor CallTower with maximum flexibility
IsDown monitors CallTower for major outages. A major outage is when CallTower experiences a critical issue that severely affects one or more services/regions. When CallTower marks an incident as a major outage, IsDown updates its internal status, the customer status page and dashboard. Depending on the customer settings, IsDown will also send notifications.
IsDown monitors CallTower status page for minor outages. A minor outage is when CallTower experiences a small issue affecting a small percentage of its customer's applications. An example is the performance degradation of an application. When a minor outage occurs, IsDown updates its internal status and shares that information on the customer status page. Depending on the customer settings, IsDown will also send notifications.
IsDown collects all information from the outages published in CallTower status page to provide the most accurate information. If available, we gather the title, description, time of the outage, status, and outage updates. Another important piece of information is the affected services/regions which we use to filter the notifications that impact your business.
CallTower publishes scheduled maintenance events on their status page. IsDown collects all the information for each event and creates a feed that people can follow to ensure they are not surprised by unexpected downtime or problems. We also send the feed in our weekly report, alerting the next maintenances that will take place.
IsDown monitors CallTower and all their 26 components that can be affected by an outage. IsDown allows you to filter the notifications and status page alerts based on the components you care about. For example, you can choose which components or regions affect your business and filter out all other outages. This way you avoid alert fatigue in your team.
CallTower and other vendors don’t always report outages on time. Our crowdsourced status platform helps you stay ahead of outages. Users report issues and outages, sharing details on what problems they are facing. We use that info to provide early signs of outages. This way, even without an official update, you can stay ahead of possible problems.
“Very happy with isDown. Setting up and managing the monitoring is straightforward. The customer support team has been excellent, always quick to answer questions and provide assistance.
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