The #1 realtime voice on a cascade pipeline you can audit layer-by-layer. SIP telephony, SOC 2 Type II, HIPAA BAA. Enterprise contact centers ship this in production.
Unified speech-to-speech hides interrupts and model choice in a black box.
Your carrier is already supported
Twilio, Telnyx, Voximplant, or your own SIP.
Plug into the telephony stack you already run. Browser agents, server flows, and inbound calls all join the same session with one config.
Telephony-ready on day one
SIP · WebRTC · WebSocket
Twilio
Published integration
Telnyx
Carrier SIP support
Voximplant
CPaaS-native
SIP (generic)
BYO carrier
G.711 μ-law + A-law for carrier compatibility. VPC for sovereign deployments.
Telephony-ready on day one
SIP · WebRTC · WebSocket
Twilio
Published integration
Telnyx
Carrier SIP support
Voximplant
CPaaS-native
SIP (generic)
BYO carrier
G.711 μ-law + A-law for carrier compatibility. VPC for sovereign deployments.
Your carrier is already supported
Twilio, Telnyx, Voximplant, or your own SIP.
Plug into the telephony stack you already run. Browser agents, server flows, and inbound calls all join the same session with one config.
Pass the security review
Zero data retention, SOC 2, BAA.
Run inside your own VPC and keep caller audio where it has to stay. SOC 2 Type II, GDPR, HIPAA BAA, the boxes your security team already checks.
Compliance that regulated CX actually needs
Zero data retention
TTS by default
SOC 2 Type II
Certified
GDPR
Compliant
HIPAA BAA
Signed with key partners
Pass the security review
Zero data retention, SOC 2, BAA.
Run inside your own VPC and keep caller audio where it has to stay. SOC 2 Type II, GDPR, HIPAA BAA, the boxes your security team already checks.
Compliance that regulated CX actually needs
Zero data retention
TTS by default
SOC 2 Type II
Certified
GDPR
Compliant
HIPAA BAA
Signed with key partners
Interrupt-aware by default
Agents that don't talk over your callers.
When a caller jumps in, the agent drops mid-word and listens. Fewer repeat phrases, shorter handle times, CSAT that holds under stress.
Live call · semantic VAD
Caller
Actually no wait, my account number is—
agent paused · stop command immediate
Caller
...8-2-4-9-1-7.
Agent
Got it. Looking that up now.
Live call · semantic VAD
Caller
Actually no wait, my account number is—
agent paused · stop command immediate
Caller
...8-2-4-9-1-7.
Agent
Got it. Looking that up now.
Interrupt-aware by default
Agents that don't talk over your callers.
When a caller jumps in, the agent drops mid-word and listens. Fewer repeat phrases, shorter handle times, CSAT that holds under stress.
FAQ
Enterprise CX platforms, call-center automation, in-house support orgs, and agent platforms. Regulated verticals (healthcare, finance) run with HIPAA BAA.
Twilio (published integration), Telnyx, Voximplant, NICE, Genesys, AWS Connect, Avaya via SIP. Bring your own carrier via the SIP endpoint with G.711 μ-law and A-law support.
Cascade means STT → Router → TTS as swappable layers in a single persistent session. Unified S2S models (like OpenAI Realtime with gpt-4o-realtime) bundle the pipeline. Enterprise CX needs layer-by-layer interrupt handling, model choice per intent, and auditable per-layer logs. Cascade gives you all three; S2S hides them.
Any LLM through the Router: GPT, Claude, Gemini, Llama, Mistral, hundreds more. Switch by intent (escalation to a premium model; FAQ to a fast cheap model). CEL conditional routing handles this natively.
SOC 2 Type II certified. GDPR compliant. Zero data retention on TTS by default. HIPAA BAA signed with healthcare partners.
The first audio lands in under a second from the moment the caller stops speaking. The voice layer alone hits under 200ms; the rest is your chosen model thinking. Route simple intents to a fast model, save the heavy reasoning for when it matters.
TTS is GA. Router and STT are in research preview. Realtime API is in research preview (WebSocket GA, WebRTC and SIP in early access).
The voice layer enterprise CX already picked.
Cascade control. Top-ranked voice. Telephony, BAA, ready on day one.