AI Voice Agents · London

Every inbound call answered. Every lead qualified. Without adding headcount.

Mode builds AI voice agents that handle inbound calls, qualify enquiries, book appointments, and route to the right person · 24 hours a day. Trained on your business. Sounds like your business. Logs everything to your CRM.

AI Workflow Build from £895  ·  Full Growth Audit £495

The problem

Missed calls are missed revenue. And most businesses are missing more than they realise.

  • 01

    Calls that come in outside office hours go to voicemail. Most callers don't leave one. They call a competitor instead. The missed call costs nothing to track and is therefore never tracked.

  • 02

    The team answers the same qualifying questions on every call. Name, requirement, budget, timeline · questions that could be handled before the call reaches a human. Senior time going to first-contact screening.

  • 03

    Call information lives in someone's head or a handwritten note. No record in the CRM. No follow-up triggered. The lead was warm. No one followed up in time.

  • 04

    Appointment booking requires a human on the phone. The caller wants a slot. The team member is with another client. The caller says they'll call back. They don't.

What Mode builds

An AI voice agent that handles calls the way a well-trained team member would.

Mode builds AI voice agents using OpenAI Realtime API integrated with Twilio · the same infrastructure powering enterprise voice AI. The result is a natural-sounding conversational agent that understands context, handles interruptions, and responds in real time.

Every agent is trained on your business: your services, your pricing, your FAQs, your booking availability. It answers as your business · not as a generic AI. When the call requires a human, it transfers or logs and triggers a callback.

CRM integration logs every call automatically: caller details, enquiry summary, qualification status, and follow-up action. No information lost. Every lead accounted for.

Typical build: 7–14 working days from scope sign-off to live deployment  ·  Includes Twilio setup, voice training, CRM integration, and testing

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What the voice agent handles
  • 24/7 inbound call answering · no voicemail, no missed calls
  • Lead qualification: name, requirement, budget, timeline captured automatically
  • FAQ handling · answers your most common questions without human involvement
  • Appointment booking with calendar sync and confirmation sent to caller
  • Intelligent call transfer to the right team member based on enquiry type
  • Out-of-hours handling with callback scheduling
  • CRM logging · every call creates a record with full summary and action
  • Follow-up trigger · automated next step fired immediately after call ends
  • Call recordings and transcripts available for review
  • Monthly call analytics: volume, qualification rate, conversion rate
Packages

Three ways to get your voice agent built.

AI Pre-flight
£495
 ·  One-off  ·  5 working days

Maps your inbound call journey, identifies the highest-value use case for voice AI, and produces the exact scope for your agent build. Credited in full toward the Build Sprint.

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AI Build Sprint
£995
/ month  ·  3-month minimum

Voice agent built and live in month one. Month two adds CRM integration and follow-up sequences. Month three connects it into your full inbound-to-conversion pipeline.

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AI Systems Partner
£1,495
/ month  ·  3-month minimum

Voice agent built alongside your other automation priorities · chatbot, lead workflows, and reporting · so your entire inbound operation runs without manual intervention.

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Twilio call costs and OpenAI API usage billed separately at cost. Typical usage costs: £50–£200/month depending on call volume.

Get started

Every call answered from day one.

The AI voice agent is built, trained, and live within two weeks. Tell us what the agent needs to handle and we'll scope the build from there.