SIP-based Call Controller / Unified Communications server. In the IoT domain, we envision Sigma Core as enabling/supporting a number of communication services occuring when the IoT Gateway detects that a serious event has occured (such as the simultaneous breakdown of two fluid pumps in a chemical processing line). Sigma Core can initiate a "Blast Conference Call" to key responders having the responsibility to fix the problem. The list of conference attendees can include not only on-site personnel, but company Subject Matter Experts, executive staff off-site, and vendors. The value of initiating incident response "in parallel" instead of a serial escalation/notification process is measured not only in dollars, but in worker safety as well.