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
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
Scheduled Maintenance Sep 18, 2026 22:00 - Sep 19, 2026 04:00 MDT
Purpose: Patching and preventative maintenance on multiple systems.
Systems Affected:
Cisco:
-Webex - APAC Webex Connectivity Optimization
***Possible Impact: Cisco Webex services may experience a brief interruption while improvements are made to strengthen connectivity and increase service resiliency between Cisco and CallTower.
-Cisco Jabber / MRA Phones - Security Update Expressway Clusters for CUCM
***Possible Impact: CallTower will be upgrading the Edge servers for Jabber and MRA Edge Phone Device. Users will experience a connectivity loss with their Jabber Client/Services and/or MRA Edge connection Phones.
Voice:
- Hong Kong Masergy Circuit Migration
***Possible Impact: Legacy OneStream voice services hosted in Hong Kong may experience a temporary interruption. Active calls may be disconnected, and new call setup may be unavailable while connectivity services are relocated within the datacenter. Failover and redundant service configurations will minimize downtime. Service will be restored upon completion of the maintenance activities.
- London Infrastructure Maintenance
***Possible Impact: During this maintenance window, services hosted in the Telehouse London datacenter may experience a brief interruption as network infrastructure is upgraded. Any service impact is expected to be limited to the duration of the maintenance activity, and services will be restored immediately upon completion.
Posted on Sep 11, 2026 - 09:31 MDT
Systems Affected:
Cisco:
-Webex - APAC Webex Connectivity Optimization
***Possible Impact: Cisco Webex services may experience a brief interruption while improvements are made to strengthen connectivity and increase service resiliency between Cisco and CallTower.
-Cisco Jabber / MRA Phones - Security Update Expressway Clusters for CUCM
***Possible Impact: CallTower will be upgrading the Edge servers for Jabber and MRA Edge Phone Device. Users will experience a connectivity loss with their Jabber Client/Services and/or MRA Edge connection Phones.
Voice:
- Hong Kong Masergy Circuit Migration
***Possible Impact: Legacy OneStream voice services hosted in Hong Kong may experience a temporary interruption. Active calls may be disconnected, and new call setup may be unavailable while connectivity services are relocated within the datacenter. Failover and redundant service configurations will minimize downtime. Service will be restored upon completion of the maintenance activities.
- London Infrastructure Maintenance
***Possible Impact: During this maintenance window, services hosted in the Telehouse London datacenter may experience a brief interruption as network infrastructure is upgraded. Any service impact is expected to be limited to the duration of the maintenance activity, and services will be restored immediately upon completion.
Posted on Sep 11, 2026 - 09:31 MDT
Scheduled Maintenance Sep 19, 2026 22:00 - Sep 20, 2026 04:00 MDT
Purpose: Patching and preventative maintenance on multiple systems.
Systems Affected:
Cisco:
-Webex - Domestic US Webex Connectivity Optimization
***Possible Impact: Cisco Webex services may experience a brief interruption while improvements are made to strengthen connectivity and increase service resiliency between Cisco and CallTower.
Posted on Sep 11, 2026 - 09:32 MDT
Systems Affected:
Cisco:
-Webex - Domestic US Webex Connectivity Optimization
***Possible Impact: Cisco Webex services may experience a brief interruption while improvements are made to strengthen connectivity and increase service resiliency between Cisco and CallTower.
Posted on Sep 11, 2026 - 09:32 MDT