Skip to content
AI & Automation

Voice AI agents and conversational IVR

Phone conversations that resolve, not menus that frustrate.

Conversational AI systems, IVR replacements, voice assistants, voice to text, and real time voice analytics.

call · inbound line 2live

Hi, I need to move my appointment to Friday.

Friday at 3 pm is open. Shall I book it and text you a confirmation?

Yes please.

Intent · rescheduleSentiment · positiveLatency · 640 ms
Illustrative interface
Category
AI & Automation
Deliverables
04 core
Core stack
Twilio Voice API · STT (Speech to Text) · TTS (Text to Speech)
Typical first phase
Call audit
The brief

Real Time Voice AI Systems & Intelligent IVR Automation

We build voice experiences that handle real conversations in customer service, sales and internal operations, combining speech to text, natural responses, and real time analysis, wired into the telephony and systems you already run.

Without it
  • Callers press through IVR menus only to wait on hold.
  • After hours calls go to voicemail and never get returned.
  • Hours of call recordings hold insight nobody has time to hear.
With Caudify
  • Voice agents that understand natural speech and resolve common requests.
  • Smooth hand off to a person, with the full context of the call.
  • Every call transcribed, summarised and searchable.
01

Voice agent development

Conversational agents for support, booking, qualification and internal lines.

Capabilities
  1. 1Conversation & persona design
  2. 2Tool use mid call
  3. 3Human escalation paths
02

STT/TTS integration

Speech recognition and natural voices tuned for your accents, vocabulary and latency budget.

Capabilities
  1. 1Custom vocabulary
  2. 2Low latency streaming
  3. 3Voice & language selection
03

Real time sentiment analysis

Live signals on tone and intent to route, escalate or coach during the call.

Capabilities
  1. 1Live sentiment scoring
  2. 2Escalation triggers
  3. 3Post call summaries
04

Telephony system integration

Connected to your existing numbers, PBX and contact centre stack.

Capabilities
  1. 1Twilio & SIP integration
  2. 2CRM call logging
  3. 3Recording & consent handling
How we deliver

AI is in the room from day one.

We don't bolt AI on at the end of a project. It's part of how we research, design, build, test and document every engagement, which is how a small senior team moves quickly without cutting corners. A person reviews everything the models produce.

On voice AI

Conversation flows are drafted and stress-tested with synthetic calls before a real customer ever hears the agent.

  • A person signs off. No model output reaches your users or your codebase without review.
  • Your data stays yours. Zero-retention API settings or private models when your data requires it.
  • Model-agnostic. We pick models by measured quality, cost and privacy, not by vendor.
  1. Discover

    Requirements mapped with LLMs

    With your permission, briefs, tickets, call notes and analytics exports go into a private workspace. LLMs map requirements, edge cases and open questions, so nothing said in a workshop gets lost. People run the workshops; the model keeps the record.

  2. Prototype

    Something real to react to, early

    First-pass screens, flows and copy variants are generated from the spec, then shaped by our designers. Decisions happen on a clickable prototype instead of a document, and the final design system stays human-made.

  3. Build

    AI pair programming, human review

    Engineers work with AI coding assistants for scaffolding, tests and refactors. Every change is read by a person and scanned by Caudilysis, our own static analysis platform, before it merges.

  4. Verify

    Evals and generated tests in CI

    AI features get an evaluation set built from real examples, and every model or prompt change is scored against it. Everything else gets generated test cases that an engineer reviews and keeps in the pipeline.

  5. Ship and learn

    Docs, runbooks and monitoring

    Documentation, runbooks and release notes are drafted with AI and checked by the team. After launch, monitoring and usage data feed straight into the next iteration.

Engagement

How a voice AI engagement runs.

The indicative shape of a first engagement. Phases overlap on purpose, so we start building while discovery is still sharpening the plan.

  1. 01Call auditListen to real calls, pick the flows.
    2 wks
  2. 02Voice designScripts, voice, vocabulary, escalation.
    2 wks
  3. 03Build & testLatency, accuracy and edge cases.
    4 wks
  4. 04Go liveShadow mode, then live traffic.
    3 wks

This is indicative only. Every engagement is scoped with you before it starts.

Fit

Is voice AI right for you?

  1. 01

    A large share of your calls are repetitive requests.

  2. 02

    You need 24/7 coverage without a 24/7 team.

  3. 03

    You want insight from calls you already record.

Not sure it fits? A free assessment will tell you

caudify / services / voice_ai.yml
# Service manifest
service:    Voice AI
category:   AI & Automation
deliverables:
  • Voice agent development
  • STT/TTS integration
  • Real time sentiment analysis
  • Telephony system integration
stack:
  • Twilio Voice API
  • STT (Speech to Text)
  • TTS (Text to Speech)
  • Realtime API
  • Voice Analytics
  • Conversational AI
phases: 4
next_step:  free assessment
Questions

Voice AI questions, answered.

Will callers know they’re talking to AI?

We recommend disclosing it up front. It builds trust and is required in some jurisdictions. Good voice agents are judged by how quickly they solve the problem, not by pretending to be human.

How fast does the voice agent respond?

We design for conversational latency with streaming speech recognition, fast models and streamed speech output, and we measure response time on real phone lines during testing.

Can the agent transfer to a person?

Yes. It hands over with a summary of the call so far, so the caller never has to repeat themselves.

Start with a free assessment.

Tell us what you're building, improving or automating. We'll come back with an honest view of where voice AI fits and the fastest path to production.

Next serviceAI & AutomationData & Analytics