Phone trees + compliant voice alerts for teams

Sigma Voice is a voice communication platform designed for operational teams that require reliable, time-critical, and compliant voice-based interactions. It enables organizations to deploy outbound voice alerts, automated inbound phone trees (IVR), and post-call voice feedback collection without requiring extensive technical integration or prolonged setup. Since 2004, it has served industries where communication failures—such as missed calls, delayed responses, or silence—carry measurable operational, financial, or human consequences.
The platform targets teams in care and service, financial services, retail, public and community services, education, and logistics—any environment where timing, clarity, and regulatory adherence are essential to effective voice outreach and response management.
Sigma Voice operates as a cloud-based telephony platform that integrates with existing business systems via API, webhooks, or manual configuration. Users define voice workflows using a visual or script-based interface: inbound calls are routed through customizable IVR menus; outbound campaigns are triggered by scheduled events, API calls, or system alerts; and post-call surveys are automatically initiated after a call ends. All voice interactions are recorded, logged, and made available for review, compliance reporting, or analytics.
The platform handles call delivery, failover routing, DTMF input processing, speech-to-text transcription (where enabled), and real-time status monitoring. It does not require on-premise hardware or SIP trunking infrastructure—calls are delivered over carrier-grade PSTN connections managed by Sigma Voice.
Organizations use Sigma Voice to reduce reliance on manual calling, improve response times during critical events, and surface operational issues earlier through structured voice feedback. In care and service settings, it delivers appointment reminders and service notifications where missed communication affects patient or client outcomes. Financial institutions use it for payment reminders and account alerts subject to strict regulatory oversight. Retailers automate order updates and promotions to minimize customer frustration from delayed or missing signals. Public agencies deploy emergency notifications across broad populations with verifiable delivery records. Universities send attendance alerts and schedule changes directly to students and staff. Logistics teams dispatch drivers and relay real-time route adjustments, reducing downstream delays caused by communication gaps. All deployments are tailored to meet specific compliance, scalability, and reliability requirements.