— AI Voice Agents
Every missed call
is a job you gave
your competitor.
Your AI voice agent answers every call, qualifies the lead, and books the job — 24/7, in your business's voice. Inbound and outbound.
The Reality
62%
of callers who reach voicemail don't leave a message. They call the next number on the list.
< 5 min
is how long you have to call a lead back before they've already made a decision. Most businesses take hours.
24/7
is when your competitors' AI answers. Nights. Weekends. Bank holidays. Every call.
The Process
Set up in 3 weeks.
One phone number. One qualification flow. Results before you commit to anything more.
We build your agent
Trained on your business — your services, your prices, your availability. Sounds like your company, not like a robot.
It handles every call
Answers every call 24/7. Automatically calls back missed leads before they go cold. Qualifies against your criteria and books jobs directly into your calendar.
You get the work
Jobs appear in your calendar. Leads land in your CRM. You only touch the calls that need a human — everything else is handled.
In Action
What your caller hears.
A live simulation of an inbound call qualification flow. This is what runs on your number.
Built with Vapi · ElevenLabs Voice · n8n Automation
The System
Everything handled.
Nothing missed.
24/7 Inbound Answering
Every call answered on the first ring. Nights, weekends, holidays.
Outbound Follow-Up
Missed a call? The agent calls the lead back within minutes, automatically.
Lead Qualification
Separates serious enquiries from tyre-kickers before they reach your calendar.
Calendar Booking
Jobs book directly into your calendar or CRM. No manual entry.
Your Voice & Brand
ElevenLabs voice cloning. Sounds like your business, not a call centre.
GDPR Compliant
Built with compliance from day one. Call recordings, consent, data handling — all handled.
The Offer
Start with a Pilot.
No long contracts. No upfront commitment to a system you haven't seen work. Run the pilot, see the results, then decide.
AI Voice Pilot
One number. One flow. Three weeks.
We build your voice agent, connect it to your calendar and CRM, and run it live. Answers inbound calls, follows up on missed leads, books jobs. You see it working before committing to anything more.
Custom quote · No monthly lock-in
Questions
Worth asking.
No. We use ElevenLabs for voice — the same platform that powers some of the most realistic AI voices available. Your agent sounds professional and human. If you want it trained on your actual voice, that's an option too.
It follows a qualification script you approve before it goes live. If something comes up it can't handle, it routes to you or takes a message. You're in control of the guardrails — we build them with you.
Yes. GDPR compliance is built in from day one — call recording consent, data storage, processing agreements. We've handled this for EU-based businesses. If you have a specific compliance requirement, tell us in the pilot call and we'll address it directly.
Yes. The same agent that handles inbound can run outbound sequences — following up on missed calls, re-engaging cold leads, or qualifying a list. Outbound can be added to any pilot or built as a separate flow.
Ready
You're losing jobs tonight.We can fix that.
Book a free 30-minute call. We'll look at your current call volume, identify where you're losing leads, and show you exactly what a pilot would look like for your business.
No commitment · 30 minutes · Free
Trusted by industry leaders.
Diabol has proven to be a reliable and knowledgeable partner, delivering a solution that significantly improved our development and operations workflows. If you are seeking a dependable and effective service provider, Diabol AB is the company to choose.
Diabol has proven to be a valuable partner throughout our project which have had a significant impact on our organization. Their expertise has been invaluable in transforming our operations and enabling us to become more agile and responsive to market demands. I highly recommend Diabol AB.
What teams ask about AI voice agents.
An AI voice agent answers calls 24/7, follows the flow you design, and takes real actions (booking, lookup, routing) mid-call. Every call is logged with transcripts, summaries, and sentiment data. You review a handful of calls per week, spot things to refine, and update scripts without involving engineers. Most teams check the dashboard for 15 minutes a day and the agent handles the rest.
They're the same underlying technology with different configurations. "AI voice agent" is the general category — anything from inbound reception to outbound sales calls. "AI receptionist" is a specific deployment: front-desk work, call routing, appointment booking, handling FAQs. The receptionist framing makes it easier to scope a first project because the use case is tightly bounded.
Clean handoff to a human. When a caller asks something outside the agent's scope, the agent gathers context (name, reason for the call, callback number), summarizes it, and either transfers the call live or drops a briefing into your inbox or CRM. No "sorry, I don't understand" loops.
Yes — every call gets a transcript, summary, and searchable history. You review calls that went poorly, identify the pattern, and update the script or fallback logic. The agent improves in days, not months, because you're updating configuration rather than retraining a model.
Only if you tell them. Modern voice models are realistic enough that callers rarely suspect AI on their own. Some regions and call types legally require disclosure — we configure that during deployment. Beyond legal requirements, most businesses don't disclose because it adds friction without adding trust.
Pricing depends on call volume, languages, and integrations, so we don't publish a public price. For most Builders, an AI voice agent captures more revenue than hiring or outsourcing the same call volume to humans — because it never drops a call, works 24/7, and scales with call volume instead of payroll. The fastest way to get a real number is a free 30-minute audit where we map your call patterns to a fit.