At ClueCon 2025, SignalWire CEO & FreeSWITCH creator Anthony Minessale unveiled a blackjack game powered by voice AI. It showcased a new model for voice AI agents where UI, media, conversation flow, and backend logic are all driven by a stateless AI agent inside SignalWire’s Programmable Unified Communications (PUC) stack. Learn more about how SignalWire is redefining voice AI: https://lnkd.in/ey7dtVPS
SignalWire
Telecommunications
Palo Alto, CA 7,978 followers
Removing barriers for developers to gain access to tools that they need to build communications and voice AI solutions.
About us
We started FreeSWITCH because we wanted to solve our own challenging problems. We could not find a stable, scalable way to implement our 2004 call center as a service product. DIY solutions were a collection of random tools with constant stability and maintenance issues; premade solutions were massively expensive and still required physical data centers anyway. We built FreeSWITCH on our vision of solving those problems, made a community, and used it for insight. This took us well beyond the original goal. FreeSWITCH became so ubiquitous that the world made many vertical products with it that generate billions of dollars a year. At SignalWire, we empower businesses with easy-to-use and customizable cloud communications tools. Programmable Unified Communications supplants one-size-fits-all solutions, sparking innovation and growth. We have harnessed the complexity of CPaaS UCaaS CCaaS and Voice AI and made the entire paradigm available to developers. Come talk to us and we can help you achieve your goals.
- Website
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https://signalwire.com
External link for SignalWire
- Industry
- Telecommunications
- Company size
- 51-200 employees
- Headquarters
- Palo Alto, CA
- Type
- Privately Held
- Founded
- 2017
- Specialties
- VOIP, WebRTC, API, SMS, MMS, Conferencing, CPaaS, Enterprise, Developers, SDK, CCaaS, UCaaS, Unified Communications, Voice AI, Video Conferencing, and Call Center APIs
Locations
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Primary
228 Hamilton Ave
3rd Floor
Palo Alto, CA 94301, US
Employees at SignalWire
Updates
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When building real-world voice AI agents, freeform prompting falls apart fast, especially when handling sensitive tasks like bookings, support, or authentication. At SignalWire, we’re solving this with structured prompting via the Prompt Object Model (POM). POM makes prompts programmable, manageable, and reliable — ready for production at scale inside our Call Fabric platform. 🔎 Our latest blog breaks down how POM works and why it’s the missing piece for building AI-powered IVRs, assistants, and agents that work every single time: https://hubs.la/Q03M4xZJ0
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One of the hardest parts of working with AI is making it act consistently. Tone drifts, fallbacks get messy, and logic gets repeated in ways that are hard to maintain. That’s where structured prompts come in. With SignalWire’s Agent SDK and builder tools, you can define reusable, named prompts that lock in tone, ensure graceful fallback handling, and keep your AI logic clean and consistent. 💡 Why it's cool: - Tone control: Make sure your agents always sound on-brand. - Fallback handling: No more awkward “I don’t understand” moments. - Reusable logic: Define once, use everywhere — across agents, call flows, and channels. This isn’t about cobbling together one-off instructions. It’s about creating a library of reliable behaviors you can drop into any workflow, so your AI agents don’t just work, they work the same way, every time. That’s how you scale AI in real-world communications: with structured, programmable consistency. SignalWire makes it simple: Define it once. Deploy it everywhere. Read more here: https://hubs.la/Q03LNVd90
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Planning an SMS campaign? Check out our tips for successful registry through TCR: https://hubs.la/Q03LbYpm0
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Most “cloud communications” platforms make you jump through hoops to do the basics — provisioning numbers, sending SMS, or handling voice traffic. SignalWire offers all traditional CPaaS primitives: 📱 Send SMS, 📞 Make and receive calls, 🔢 Manage phone numbers, 🎙️ Handle voice traffic All with simple, direct API calls. No middleware. No carrier complexity. Just pure telecom power at your fingertips. Because these are the building blocks of Programmable Unified Communications (PUC), you can compose them into anything — from an intelligent IVR to a global contact center, to an app that just needs one phone number. It’s like having carrier-grade infrastructure, but programmable and instantly available. 💡 Why it’s cool: - Every carrier feature is abstracted into a single API call. - Build anything from a quick prototype to an enterprise platform. - Scale globally without touching legacy telecom hardware. SignalWire gives developers the primitives to innovate faster — no lock-in, no patchwork, just the tools you actually need. Programmable. Composable. Scalable. That’s what CPaaS should be. Read more here: https://hubs.la/Q03LNQGC0
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Have questions about Programmable SIP? Learn all about it in this SIP 101 blog: https://hubs.la/Q03LbXrG0
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Claude can now create actual files from your instructions, including spreadsheets and PDFs. Check it out: https://hubs.la/Q03LbW-J0
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Ever wonder what’s in the SignalWire stack? We’re starting a new series showcasing our incredible features. First up, AI Voice Transcription. Running a call center used to mean juggling tools for dashboards, QA, and compliance. Now it’s just one line of code away. With SignalWire’s AI Voice Transcription, you can enable live transcription before a call is even routed — instantly unlocking dashboards, real-time summaries, and compliance monitoring without bolted-on services. Because transcription lives inside the telecom fabric, you get sub-500ms latency, enterprise-grade reliability, and seamless integration across voice, video, and messaging. Imagine: - Automatic call summaries for your CRM. - Compliance transcripts generated in real time. - Dashboards that update as conversations unfold. This isn’t another add-on. It’s programmable, composable infrastructure that makes call centers smarter, faster, and future-proof. Build it once. Scale it everywhere. That’s the power of SignalWire. Read more here: https://hubs.la/Q03LNxCp0
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Check out this blog to learn how to identify voice AI edge cases and how to design for them: https://hubs.la/Q03LbX4c0
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Amazon has its first official entrance into the U.S. robotaxi market: https://hubs.la/Q03LbNTY0 Would you ever ride in a robotaxi? Comment down below!