SignalWire
Real-time voice, messaging, video, and AI APIs for developers.
SignalWire Powers Real-Time Communications With a Unified Control Plane
Products & Services
SignalWire serves developers, enterprises, and contact center teams with programmable voice, messaging, video, and AI agent capabilities, all orchestrated from a single communications control plane.
AI Voice Agents
- AI Agent API: Deploy conversational voice agents that respond, route, and act in real time.
- Multi-Agent Orchestration: Transfer callers between specialized AI agents and humans with full context preserved.
- Built-in RAG (Datasphere): Ground AI agents in your own documents for accurate, traceable responses.
- Context and Steps: Define declarative agent workflows that keep AI on task through every stage of a call.
Programmable Voice
- Voice API: Build dynamic call routing, IVRs, auto-dialers, and recording pipelines with developer-first APIs.
- Click-to-Call: Embed WebRTC-powered call buttons directly into any website or application.
- Real-Time Transcription: Capture live call transcripts and stream speech data to your application via webhooks.
- Real-Time Voice Translation: Translate phone calls across thousands of languages with a single line of SWML.
Messaging
- Messaging API: Send and receive SMS at scale with programmable routing and workflow automation.
- SMS Follow-Up: Trigger post-call text messages automatically from within live voice workflows.
Communications Infrastructure
- Call Fabric: Address every communication resource (numbers, SIP endpoints, agents, video rooms) as programmable objects on one control plane.
- SIP and BYOC: Connect existing carriers or route calls through your own infrastructure with full SIP support.
- Data Residency and Compliance: Route data through in-region infrastructure to meet GDPR, HIPAA, and sovereignty requirements.
About SignalWire
SignalWire gives developers and enterprises direct control over the full lifecycle of real-time communications. Built by the creators of FreeSWITCH, the open-source communications platform with over 15 years of development behind it, SignalWire moves beyond traditional CPaaS by offering a unified control plane that orchestrates voice, messaging, video, and AI from a single infrastructure layer.
The platform owns its telecom infrastructure end to end, delivering sub-500ms response times without relying on third-party services. Developers use SignalWire's APIs, SDKs, and SignalWire Markup Language (SWML) to build everything from AI voice agents and programmable contact centers to real-time transcription and translation systems. SignalWire holds SOC 2 Type II certification and aligns with GDPR, HIPAA, CCPA, and PCI-DSS standards.