As of 10:00AM MT, the workaround has been applied to all SIP trunks, including all UCaaS and contact center platforms, and all users should be working normally. Customers are reporting services have normalized and CallTower Support will continue to monitor closely. We are closing out this case.
A bug was discovered in our SIP trunking platform that caused the system to reject inbound and outbound calls on some SIP trunks. CallTower is continuing to work with the vendor on the permanent resolution. As additional information is provided by the vendor on a permanent resolution, CallTower will implement those changes.
If you continue to experience issues, please contact CallTower Support at email@example.com