Get rid of the phone tree your customers hate.
There's a better way.

SignalWire redefines what an IVR can be. Traditional phone systems frequently frustrate callers with rigid menus, confusing call flows, and robotic prompts. With SignalWire, you can build voice systems that feel more like conversations - and that do more than just route calls.

SWML: Declarative IVR control, powered by FreeSWITCH

SignalWire Markup Language (SWML) brings together the best of XML dialplans and real-time call control into a single, document-based format. It’s the new standard for building IVRs that are:

Easy to read, modify, and deploy

Expressed in JSON or YAML

Fully integrated with AI, transcription, DTMF, and live actions

Capable of handling branching logic, call recording, transfers, and AI agent calls

If you’ve worked with FreeSWITCH, this will feel familiar. But cleaner and easier to scale.

Add AI agents to your call flows

With SignalWire, AI isn't an afterthought. It's a native part of the programmable stack, and using the ai method in SWML allows AI Agents to be invoked as part of live call flows. That means your AI can:

Handle conversations natively, without bridges or proxies
Gather structured data and execute logic in real-time
Trigger secure handoffs, perform lookups, and summarize calls
Adapt dynamically to user behavior
Operate across multiple languages and voices

Call Flow Builder: Design IVRs that write the SWML for you

Not a SWML expert? No problem. SignalWire’s Call Flow Builder lets you build full IVRs using a visual drag-and-drop interface.

Add steps like:

Answer call
Play message
Gather input
Transfer to agent
Invoke AI Agent
Record call
Add TTS

Using Call Flow Builder

Bad IVRs drive away customers. If you've ever called technical support, a pharmacy, or an after-hours office line and found yourself stuck in a loop with a phone tree... then you get it.

Long menus, irrelevant options, and impersonal prompts make it hard to get help. These failures can damage your brand.

Programmable Unified Communications: A better foundation for IVRs

SignalWire’s platform is a Programmable Unified Communications (PUC) model, a new standard that solves what CPaaS left behind. Developers get full programmatic control while teams get unified workflows across voice, video, messaging, and AI.

PUC lets you build, scale, and own your communications without reinventing the infrastructure or stitching together disconnected services. Voice, video, messaging, SIP, AI - PUC brings them under one system. Fewer vendors, fewer dashboards, fewer ways things can break.

SignalWire’s PUC platform combines modern call control, AI voice agents, low-latency voice infrastructure, and the developer-first platform to gives you the tools to build IVRs that can integrate into any phone system or contact center to actually solve customer problems.

Learn about PUC

Conversational Voice and Video in a Single Platform

The AI-powered conversational apps you build on SignalWire can automate phone calls, join video conferences, and integrate with any contact center or phone system. Try a test call with Sigmond, then fork his code, swap out the video avatar, and build an even more advanced version of your own.

Join a Video Call with Sigmond

Fork the Code

PCI-DSS

All payment data processed through our platform is securely handled to prevent fraud and breaches.

HIPAA

Health data remains confidential with SignalWire's HIPAA compliance through PHI safeguards and signed BAAs.

SOC II Type 2

We maintain a certified, comprehensive system to protect against data breaches for operational security, confidentiality, and data integrity.

Modernize IVR Systems With Composable Communications Infrastructure