CallTower Status
All Systems Operational

About This Site

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
Skype for Business Operational
Skype for Business - Voice   ? Operational
Instant Messenger and Presence   Operational
Clarity Connect   Operational
CT Cloud SIP   ? Operational
CT Cloud Voice   ? Operational
CallTower Connect   Operational
Adobe Connect   Operational
Microsoft O365   Operational
iMeet   Operational
ON Demand Audio Conferencing   Operational
Degraded Performance
Partial Outage
Major Outage
Scheduled Maintenance
Scheduled Maintenance Oct 19, 22:00 - Oct 20, 04:00 MDT
Purpose: Patching and preventative maintenance on multiple systems. 

Systems Affected:
CT Cloud:
-Migrate ATL Meta EAS subscriber data storage type
***Possible Impact: EAS services (voicemail and CommPortal), Brief outages while blades are rebooted for upgrade.

Clarity Connect:
-Install Clarity Sept CU
***Possible Impact: The Clarity dashboard will be periodically unavailable, this will not affect calls.

Skype for Business:
-Increase Resources on CT9SLCPOOL07 (Clarity Pool)
***Possible Impact: Intermittent Client Re-connections on their Desk Phones & Desktop Clients.

-Migrate customer VPN's from vpn1.ord to cust-vpn1.ord
***Possible Impact: 3CX/VPN - Most 3CX customers with IPSec VPN connections to Calltower Chicago, will experience an outage of less than 30 minutes.

-Split CHI datastore-Windows and Linux
***Possible Impact: 3CX - Customers may see small degradation of call quality while the datastore is being moved.

-Reboot CUPs servers CL 00,01,02,04,07,08 and 10
***Possible Impact: Server reboots will occur, customers may experience a brief loss in connectivity with their Jabber Clients.
Posted on Oct 12, 20:25 MDT
Past Incidents
Oct 17, 2018

No incidents reported today.

Oct 16, 2018
Resolved - CallTower Engineers are seeing services restored for Clarity Connect customers. Servers have come back online and calls are now routing properly. CallTower will now begin to reverse the temporary forwards put in place during this issue.
Oct 16, 14:38 MDT
Update - CallTower engineers are seeing services restored for select customers. A pool of servers are still being worked on by CallTower Engineers in order to fully restore services for the remaining customers affected. As Clarity Connect customers come back online, CallTower Support will remove any forwarding that has been requested.

Please continue to send any forwarding requests to
Oct 16, 14:14 MDT
Update - An unexpected error has caused servers to fail for Clarity Connect Contact Center Services. Those servers are in process of being restored and services are coming online for some customers now. An additional update will be provided within 30 minutes or earlier if additional information is available. CallTower Support can forward numbers upon request to
Oct 16, 13:39 MDT
Identified - CallTower engineers have identified an issue with calls completing to some Clarity Connect customers. CallTower is currently working to bring the servers affected by this issue back online to restore services.
Oct 16, 13:15 MDT
Oct 15, 2018

No incidents reported.

Oct 14, 2018

No incidents reported.

Oct 13, 2018
Completed - The scheduled maintenance has been completed.
Oct 13, 02:01 MDT
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 12, 22:02 MDT
Scheduled - CallTower will be performing maintenance on one of our Skype for Business servers outside of our published monthly maintenance windows. This additional maintenance period will be performed tonight at the above time. Skype for Business customers will be moved to a redundant servers during the maintenance and may experience a brief reconnection of the Skype for Business client. No active calls will be impacted during this period.
Oct 12, 14:45 MDT
Oct 11, 2018

No incidents reported.

Oct 10, 2018

No incidents reported.

Oct 9, 2018

No incidents reported.

Oct 8, 2018
Resolved - CallTower has optimized routing and inbound and outbound traffic has normalized for users. After the failover of Skype for Business users to a redundant pool, select DIDs for a small subset of users did not reroute to the redundant pool and inbound calls failed. CallTower has made changes to the route on those DIDs and we are now seeing inbound call completing successfully.

CallTower will continue to closely monitor services. Please report any additional issues to
Oct 8, 10:12 MDT
Update - CallTower has successfully moved users and response groups to redundant servers. CallTower engineers make additional routing modifications to optimize the call path while redundant systems are in place. Select users may continue to experience inbound call completion issues as we work to reroute the affected DIDs.

Services will continue to be closely monitored as we investigate the issue in the Atlanta data center. Please notify of any additional issues.
Oct 8, 09:49 MDT
Identified - CallTower Engineers have identified an issue with a Skype for Business server pool in our Atlanta data center impacting a small number of users. Customers are being failed over to a redundant pool to mitigate the issue while the root-cause is identified. A small group of customers may experience a reconnection of their Skype for Business Client but active calls should not be interrupted. All response groups will also be failed over and may experience a short interruption of service.
Oct 8, 09:14 MDT
Oct 7, 2018

No incidents reported.

Oct 6, 2018

No incidents reported.

Oct 5, 2018

No incidents reported.

Oct 4, 2018
Resolved - CallTower has identified an issue with a front-end server for a Skype for Business (SfB) pool in out ATL data center that has cause a small number of customers to have intermittent SfB Client connectivity. Active calls were not affected by the issue. The pool has been removed from routing and services have normalized.
Oct 4, 14:32 MDT
Oct 3, 2018

No incidents reported.