Crux-Voice: CloudS2S · Flagship Speech-to-Speech

Direct Speech-to-Speech AI Voice Agent in 350 ms.

Built by CruxLabx Technologies. Powered by Crux-Voice: CloudS2S — native end-to-end neural audio streaming that answers business calls in under 350 ms, understands interruptions with zero turn-lag, and speaks your caller's language fluently.

Live demo line with Anu — call right now or test in browser above. Interrupt mid-sentence and hear the 350 ms recovery.
Call demo phone Plan architecture
LIVE DEMO Crux-Voice: CloudS2S · Anu 00:00
A
Ready to speak — start live audio or simulated call
English (India) தமிழ் (Tamil) हिंदी (Hindi) తెలుగు (Telugu)
Crux-Voice Engine
355 ms
Cloud platforms
~900 ms
350 ms
Anuvo Cloud — measured end-to-end
355 ms
Anuvo Resident — measured, self-hosted
0 bytes
of audio leave your building on Resident
Live
in a working hospital, answering real calls

Numbers are claims we publish the method for — see the latency benchmark page.

Two editions, one product

Speed in the cloud. Residency on your floor.

Same agent, same behaviour, same multilingual intake. The only difference is where the inference runs — and therefore who can ever touch the audio.

Anuvo Cloud 350 ms

The hosted edition. Zero infrastructure, per-minute billing, multi-region. Built for speed-driven commercial buyers who want a voice agent live this week.

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Anuvo Resident 355 ms

The self-hosted edition — our differentiator. Runs entirely inside your infrastructure. No third-party model dependency, no per-minute API fee, no audio leaving the building.

Compare Resident →
Why Resident Voice AI

The world changed. The old way broke.

1 · The world changed

Every business now receives more inbound conversation than it has humans to answer — and callers judge you in the first second of silence.

2 · The old way broke

Cloud voice AI made agents possible, but it sends every word of every call to somebody else's servers and charges per minute, forever.

3 · Which means

The businesses with the most calls and the most sensitive data — hospitals, labs, legal — are either locked out, or carrying a risk nobody has priced.

4 · There is another way

A voice agent should answer in under half a second and run wherever you need it to — including entirely inside your own building.

5 · So we built Resident Voice AI. One agent, two editions: 350 ms in the cloud, 355 ms inside your building — measured, with the method published.
The proof narrative

Live in a working hospital

A hospital like yours was losing calls every day. Anuvo answers them all now — and the front desk is no longer the bottleneck.

"Patients used to call three times and give up. Now every call gets answered on the first ring — in the caller's language — and the front desk's work shifted from answering to caring."

Front-desk team, VS Hospitals · production deployment
355 ms
measured answer, method published
100%
of calls answered — none lost to voicemail
3
languages live on the same lines
0
bytes of audio leave the building
We lead with the patient who called three times and gave up. The millisecond figure is our proof, not our pitch. Outcomes are reported by the deployment, not a demo.

Detailed deployment story on the Healthcare page.

Live in days, not months

The 30-day path to a live agent

No six-month SOW. The same sequence, whether you deploy Cloud or Resident.

01
Day 1
Scope
Lines, languages, PBX/SIP, compliance needs.
07
Day 7
Build
Agent configured — flow, knowledge, escalation.
14
Day 14
Test
Simulated calls, edge cases, barge-in, languages.
21
Day 21
Dry run
Shadow traffic, safety locks, audit checks.
30
Day 30
Live
Calls answered in production. You review daily.
Security by design

Built for procurement first contact

The controls that close regulated deals — on the page your security team will read.

🔒 Encryption
TLS 1.3 in transit, AES-256 at rest — keys on your infrastructure on Resident.
🚫 No data egress
Resident makes no outbound calls carrying audio. Inference, transcripts and logs resolve inside your boundary.
🧍 RBAC & least privilege
Operator, supervisor and auditor roles. Tamper-evident, exportable audit log.
✍️ Consent & retention
Announcement-and-consent flow, retention windows and deletion under your administration.
🤖 No model vendor in the loop
No third-party model dependency on Resident — no vendor sees, stores or prices your calls.
🕐 Updates you schedule
Versioned signed releases applied on your maintenance window. No forced telemetry.
Straight answers

Frequently asked

What is Anuvo?
Anuvo is Resident Voice AI: a voice agent that answers inbound calls in under half a second, books appointments, and speaks the caller's language. It runs in the cloud or entirely inside your own infrastructure.
How fast is it, really?
Measured end-to-end from call connect to first useful response: 350 ms on Anuvo Cloud, 355 ms on Anuvo Resident. We publish the method and the honest caveats on the latency benchmark page — engineers can verify rather than trust.
Does Resident send audio anywhere?
No. Anuvo Resident runs entirely inside the customer's infrastructure with no third-party model dependency: no per-minute API fee, no vendor repricing risk, and no audio leaving the building.
Which languages?
Anuvo is multilingual including Indian languages — English, Hindi and regional languages configured per line. The hospital deployment runs intake in three languages on the same lines.
How do we get started?
Call the demo line, then plan your deployment. For Resident we scope the integration with your PBX or SIP trunk, your HIS/CRM, and your compliance requirements — typically live in days, not months.
What's the difference between an IVR and an AI voice agent?
An IVR is a menu tree — it makes the caller do the work by pressing keys. An AI voice agent understands speech, answers in plain language in under half a second, and takes actions like booking appointments. IVRs cost callers seconds of silence; Anuvo answers with none.
Which is better for business calls: hosted or self-hosted voice AI?
Hosted (Anuvo Cloud, 350 ms) is fastest to live and needs zero infrastructure. Self-hosted (Anuvo Resident, 355 ms) is for data you are not allowed to send anywhere — hospitals, labs, legal. Both run the same agent; the choice is where the audio is allowed to go.
Missed calls pay for the license

A hospital like yours is losing calls right now.

One call a day that never gets answered pays for the month. Calculate your volume, pick an edition, and see the deployment plan — in under two minutes.