—— Why SignalWire ——

Your code runs the logic, our infrastructure runs the rest.

Voice, messaging, video, and subscriber management as native primitives on one carrier-grade platform. Built and operated by the team that wrote the media engine the industry depends on.

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THE PLATFORM

Programmable Unified Communications

CPaaS gives you API primitives on infrastructure it doesn't own. You're building two layers up: your code on their API, their API on a network they rent. Every fix you need at the network layer is a support ticket, not a deploy.

State is yours to rebuild inside your application. Subscribers, identity, and presence are yours to track. None of that machinery is your product.

SignalWire is the infrastructure underneath. You program it directly. Our team wrote the media engine the industry runs on, and we operate the carrier network ourselves. We own the engine and run the network, so throughput holds under load and the platform stays at carrier scale as you grow.

Side by side

Developers feel the difference

SignalWire owns the infrastructure, so your code spends its time on your product instead of the plumbing.

Traditional CPaaS

SignalWire

Built on someone else's network

Owns the network and media engine

Slows and hits limits under load

Holds at carrier scale by design

Your code rebuilds call and session state

Call and session state native to the platform

Per-feature billing across vendors

One platform, one invoice

Logs scattered across dashboards

One structured event stream

Your application tracks identity across channels

Native subscriber primitive addressable by ID

Traditional CPaaS

Built on someone else's network

Slows and hits limits under load

Your code rebuilds call and session state

Per-feature billing across vendors

Logs scattered across dashboards

Your application tracks identity across channels

SignalWire

Owns the network and media engine

Holds at carrier scale by design

Call and session state native to the platform

One platform, one invoice

One structured event stream

Capabilities

Every communications primitive, native to the platform

The platform holds the state of every call and message, so your code builds on it instead of rebuilding it.

Voice

Programmable voice runs inside the media engine, not on top of it. Call control, IVR, and queuing are native, so routing and session state stay on the platform.

Voice

Programmable voice runs inside the media engine, not on top of it. Call control, IVR, and queuing are native, so routing and session state stay on the platform.

Messaging

SMS, MMS, RCS, and WhatsApp share one API and one state model. Add a channel without adding an integration or a separate vendor.

Messaging

SMS, MMS, RCS, and WhatsApp share one API and one state model. Add a channel without adding an integration or a separate vendor.

Subscribers

Identity is a native primitive, addressable by ID, so you address a user directly instead of tracking them across channels.

Subscribers

Identity is a native primitive, addressable by ID, so you address a user directly instead of tracking them across channels.

Audio streaming & recording

Video and multi-party conferencing run in the same engine as voice. One media path, no separate conferencing vendor.

Video & Conferencing

Video and multi-party conferencing run in the same engine as voice. One media path, no separate conferencing vendor to bridge.

Fax

Runs on the same platform as voice and messaging. Send and receive programmatically, no separate fax gateway.

THE ENGINE

The media engine the industry runs on

SignalWire CEO Anthony Minessale created FreeSWITCH in 2006, the open-source engine behind platforms like Vonage, Five9, and Amazon Connect. The same team spent the next twenty years building the platform around it: the network, the numbers, and the routing all operated as one system.

20+

Years of development

2.7B

Annual minutes & messages

2,000+

Customers

99.95%

Uptime

MIGRATE

You don't have to rewrite to evaluate

Our REST API is Twilio-compatible. Point your existing code at SignalWire, change the credentials, and it runs. Migrate the rest on your own timeline, because rewriting a working codebase to switch vendors is a special kind of hell we do not wish on you.

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from twilio.rest import Client

client = Client(sid, token)

client.messages.create(
    from_="+15551234567",
    to="+15559876543",
    body="Hello",
)

Python

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from twilio.rest import Client

client = Client(sid, token)

client.messages.create(
    from_="+15551234567",
    to="+15559876543",
    body="Hello",
)

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from twilio.rest import Client

client = Client(sid, token)

client.messages.create(
    from_="+15551234567",
    to="+15559876543",
    body="Hello",
)

Python

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from signalwire.rest import Client


client = Client(project, token, space)

client.messages.create(
    from_="+15551234567",
    to="+15559876543",
    body="Hello",
)

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from signalwire.rest import Client


client = Client(project, token, space)

client.messages.create(
    from_="+15551234567",
    to="+15559876543",
    body="Hello",
)

Python

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from signalwire.rest import Client


client = Client(project, token, space)

client.messages.create(
    from_="+15551234567",
    to="+15559876543",
    body="Hello",
)
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FAQS

Frequently asked questions

Frequently asked questions

How SignalWire differs from a CPaaS and what that means for reliability.

How SignalWire differs from a CPaaS and what that means for reliability.

What's the difference between SignalWire and a CPaaS like Twilio, Telnyx, or Vonage?

SignalWire built and operates its own media engine (based on FreeSWITCH) as the core of the platform, so voice/video processing and call state are native to what you're programming against. In a traditional CPaaS model, you're calling an API that orchestrates across carrier and infrastructure partners. 

SignalWire is one system: voice, messaging, video, and subscriber identity share a single state model, so a call, a message, and a subscriber all reference the same underlying object instead of living in separate silos your application has to stitch together.

Can I switch from Twilio to SignalWire without rewriting my app?

Yes. SignalWire's REST API is Twilio-compatible, so most existing integrations run after you swap credentials and host. You migrate remaining features on your own timeline instead of doing a full rewrite up front.

How long does a Twilio-to-SignalWire migration take?

For basic messaging or voice calls, often just the time it takes to update credentials and endpoint URLs. You can be sending traffic through SignalWire the same day. Full migration timelines depend on how much custom call/message logic you've built against Twilio-specific features.

Will my existing phone numbers work if I switch to SignalWire?

Numbers can generally be ported over as part of migration, though porting timelines depend on your current carrier and number type.

Is SignalWire reliable at scale?

SignalWire runs at 99.95% uptime across 2.7B+ annual minutes and messages for 2,000+ customers, on infrastructure it has operated for over 20 years. Because SignalWire owns the media engine rather than reselling someone else's network, throughput is built to hold under load rather than hit vendor-imposed limits.

Stop assembling. Start building.

The infrastructure you keep rebuilding already exists. SMS, voice, video, subscribers, and every communications primitive running inside one carrier-grade platform

Stop assembling. Start building.

The infrastructure you keep rebuilding already exists. SMS, voice, video, subscribers, and every communications primitive running inside one carrier-grade platform

Stop assembling. Start building.

The infrastructure you keep rebuilding already exists. SMS, voice, video, subscribers, and every communications primitive running inside one carrier-grade platform

Stop assembling. Start building.

The infrastructure you keep rebuilding already exists. SMS, voice, video, subscribers, and every communications primitive running inside one carrier-grade platform