Voxil AI

AI Voice & Calls

Retell AI setup that’s ready for real callers

We configure Retell AI agents end-to-end, conversation flows, knowledge bases, custom functions, phone numbers and CRM integrations, and test them properly before your customers ever hear them.

Book a Free Strategy Call See pricing & scope
Conversation flowsKnowledge baseCustom functionsPost-call analysis

The short version

Fast to start. Worth doing properly.

Retell AI is one of the quickest ways to get a stable, natural-sounding phone agent live. But a good setup still depends on the details: a flow that handles off-script callers, functions that fail gracefully, and post-call data your team actually uses.

We build Retell agents with structured conversation flows where reliability matters and single-prompt agents where flexibility matters, connect them to your stack with webhooks or middleware, and configure post-call analysis so every call produces clean, searchable data.

What's included

  • Agent design: single-prompt or conversation flow
  • Knowledge base from your site and documents
  • Custom functions: booking, lookup, CRM writes
  • Phone numbers, transfer and voicemail rules
  • Post-call analysis fields and webhooks
  • Test suite and launch checklist
Get a fixed-price scope

Capabilities

What you get with Retell AI Setup

Conversation flows

Node-based flows for predictable paths like booking, intake and verification.

Knowledge bases

Grounded answers from your approved content, kept in sync as it changes.

Custom functions

Real-time calls to your calendar, CRM or database during the conversation.

Telephony

Retell numbers or your own via Twilio/Telnyx, with warm and cold transfers.

Post-call analysis

Extract outcome, sentiment and custom fields from every call automatically.

CRM integration

Push call data into GoHighLevel, HubSpot, Salesforce or a spreadsheet.

How it works

From first call to live in weeks

  1. 01

    Scope & script

    Define goals, call paths, data to capture and transfer rules.

  2. 02

    Configure Retell

    Agent, flow, knowledge base, voice and functions set up.

  3. 03

    Integrate

    Webhooks and middleware connect call data to your tools.

  4. 04

    Test & launch

    Structured test calls, a pilot, and a documented handover.

Best fit

Who this is built for

  • Businesses that want a reliable voice agent live quickly
  • Teams that tried Retell AI but got stuck on flows or integrations
  • Agencies deploying voice agents for multiple clients
  • Operations that need structured data from every call

Popular in

Home ServicesMedical / ClinicsInsuranceReal Estate

Works with your stack

No rip-and-replace. We integrate with what you already run.

Retell AITwilioTelnyxGoHighLevelHubSpotSalesforceCal.comCalendlyGoogle CalendarMake.comZapiern8nGoogle SheetsSlack

FAQ

Retell AI Setup FAQ

Straight answers to what buyers ask us most. Don't see yours? Ask on a free call.

Ask us directly

Retell AI is a platform for building, testing and deploying AI phone agents. It provides the real-time voice pipeline, telephony, conversation-flow tooling, knowledge bases and post-call analytics, so teams can launch voice agents without building infrastructure.

Use conversation flows when the path matters (intake, booking, verification) and single prompts when the call is open-ended (general FAQs). Many of our builds combine both.

Yes. With custom functions or native integrations it can check availability and book into tools like Cal.com, Calendly, Google Calendar or GoHighLevel during the call.

A focused agent can be live in one to three weeks, depending on integrations and how many call types you need.

Yes. We port prompts, tools and integrations, then re-test on the new platform so behavior matches or improves.

Keep exploring

Related services

Most clients combine two or three of these into one connected system.

Vapi AI Integration

Production Vapi assistants wired to your CRM, calendar and tools.

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AI Voice Agents

Natural phone agents that answer, qualify and book around the clock.

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AI Receptionist

A front desk that never misses a call, books and routes like your best hire.

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GoHighLevel AI

Conversation AI, Voice AI and AI workflows inside GoHighLevel.

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Retell AI Setup for businesses in

New YorkLos AngelesChicagoHoustonDallasMiamiAtlantaUnited KingdomDubai / UAECanadaAustralia All locations

Taking projects for next month

Let's start something new together

Book a free 30-minute strategy call. We'll map the agents, automations and integrations worth building first, and tell you honestly what isn't.

Book a Free Call Send us a brief
No obligation Fixed-scope proposal You own the code