Beginning on Saturday, March 16 at approximately 11:07PM EDT we received first reports that inbound telephone calls were not completing and our contact center advisors had lost access to our telephone system application(s). Issues were isolated to our data center. By Sunday March 17 at 10:30AM EST a full-stack reboot of all telephone, firewall, and switch hardware was complete and all systems verified operational.
This issue recurred beginning on Monday March 18 at 2:36AM EDT. Additional troubleshooting identified an unresponsive Fabric Interconnect and blade server chassis. Local data center technicians verified unresponsive hardware and resolved. Operations was restored at 11:10AM EDT Monday March 18.