Voice Agents
Voice Agents
That missed call was a new customer. Our voice agents pick up every call, ask the right questions, and book the appointment. Around the clock, in 12 languages.
Most voice agents fail in production, not because the model is weak, but because nobody tuned the dialog, the latency budget, or the carrier integration. Callers hang up at ten seconds when the agent stalls.
The fix is mundane, not magical: real call recordings to grade against, a sub-500ms latency budget enforced at the carrier edge, and weekly transcript reviews. Skip those and you ship a chatbot with a phone number.
Case Studies
Three businesses that stopped missing calls
Each had the same problem: calls going to voicemail after hours. Here is what changed.
Dental Clinic, 3 Locations
40% of appointment requests came in after hours. The voice agent now books appointments 24/7 by checking available slots in the practice management system. No-shows dropped because confirmation calls are automated too.
Dental Clinic, 3 Locations
40% of appointment requests came in after hours. The voice agent now books appointments 24/7 by checking available slots in the practice management system. No-shows dropped because confirmation calls are automated too.
Real Estate Agency, 18 Agents
Inbound leads called during showings and got voicemail. The voice agent now asks qualifying questions, captures budget and timeline, and routes hot leads to the right agent with a text notification.
IT Support Company
Tier-1 support tickets were mostly password resets and VPN issues. The voice agent handles these with step-by-step instructions. Complex issues get transferred to a technician with the transcript attached.
What it actually looks like
A glance at the surface customers and operators work in every day; no marketing screenshots, no fake data.
A voice agent you can grade; every call, every metric.
Every artefact in your account: the prompt, the retrieval index, the carrier config, the latency dashboard, and the transcript pipeline you audit nightly.
- Voice pipeline (ASR → LLM → TTS) tuned for sub-500ms latency
- Native SIP trunk integration with your carrier
- Transcript + audio archive with searchable history
- Real-time CSAT capture + post-call evaluation
- Latency dashboard per leg (ASR, LLM, TTS) with alerts
- Quarterly retainer for prompt + voice evolution
Proven voice platforms, not experiments
We build on commercially supported speech recognition and synthesis platforms. Your phone system needs reliable infrastructure.
Voice agents that callers can't tell from a person.
Voice AI fails when latency cracks. We optimise three concrete metrics that decide whether a real conversation works.
Sub-500ms end-to-end latency
ASR + LLM + TTS measured at the carrier edge. Conversation feels natural; no "are you still there?" pause.
CSAT above 4.5/5 within 30 days
Caller-rated satisfaction tracked per call. Below threshold and we re-tune the prompt + retrieval, not just patch.
Carrier integration without a vendor lock
Native SIP trunk into your existing carrier (Twilio, Vonage, Telnyx, BYOC). No re-platforming required.
Three shapes for a voice engagement.
Voice is unforgiving; every ms costs CSAT. Pricing reflects the integration complexity, not the call volume.
One inbound flow, one carrier
Ships in 5 weeks
- Single inbound voice flow (e.g. triage, booking, qualification)
- One carrier integration (Twilio or Vonage)
- Transcript + audio archive
- CSAT capture + latency dashboard
- Outbound campaigns
- Multi-carrier failover
Inbound + outbound + escalation
Ships in 10 weeks
- Three voice flows (inbound, outbound, escalation handoff)
- Multi-carrier failover with priority routing
- CRM integration for caller context + post-call writeback
- Real-time human-in-loop monitoring
- Quarterly prompt + voice retainer
- 24/7 carrier-incident response
Multi-language voice platform
Quarter-scale engagement
- Unlimited flows + carriers
- Multi-language pipeline (100+ languages)
- Embedded voice engineer (full-time)
- Custom voice cloning where appropriate
- Compliance review (HIPAA / PCI / GDPR)
- Code escrow + exit clause
Excludes carrier minutes + model API spend. We route through your accounts so cost stays transparent.
We start by listening to your real calls
We analyze 100+ of your actual recorded calls to understand what callers ask, how they ask it, and where conversations go wrong. Then we design the agent around those patterns.
Listen to Real Calls
We review your call recordings and categorize them by topic, complexity, and outcome. This tells us exactly which calls the AI should handle.
Design the Conversation
We write conversation flows for each call type. Every path includes fallback responses, clarification questions, and a clear trigger to transfer to a human.
Connect to Your Systems
The voice agent connects to your phone system, CRM, and calendar. It books appointments, updates records, and logs every call automatically.
Test and Tune Weekly
We review call transcripts every week. When the agent gets something wrong, we fix the flow. Accuracy improves every month.
How a 3-location dental clinic booked 38% more appointments
40% of calls came after hours
The clinic received 80+ calls per day across three locations. Staff could only answer during office hours. After 5pm and on weekends, calls went to voicemail. Most patients never called back. They booked with a competitor instead.
24/7 voice agent with calendar access
A voice agent that answers every call, checks available appointment slots in real time, and books directly into the practice management system. It confirms appointments by SMS, handles cancellations, and transfers complex questions to staff during office hours.
38% more appointments, zero extra staff
Monthly appointments increased by 38%. After-hours bookings now account for 30% of all appointments. Staff spend 3 fewer hours per day on the phone and focus on in-clinic patient care instead.
More monthly appointments
Numbers that speak for themselves
First-call resolution rate
Average response time
Customer satisfaction score
Call volume handled by agents
Voice agents in production today.
Real call volumes, real carriers, real CSAT scores; not a demo on a Twilio sandbox.
Bolt one on top of any tier.
Voice engagements pair with the same growth + monitoring stack as our other solutions.
Voice AI agent development cost calculator
Build cost + the per-minute economics of running it at scale.
Open the full calculator with methodologyYour inputs
05 fieldsAffects blended rate; senior engineers cost 35% more.
Real Questions
What people ask before deploying a voice agent
From sales calls and pilot reviews. If yours is not here, call us. The irony is not lost on us.
Most do not. In post-call surveys across our deployments, 71% of callers thought they spoke to a person. We use neural voice synthesis that sounds natural, not robotic. That said, we recommend disclosing it is an AI agent. Trust matters more than deception.
It says so. The agent is trained to recognize when it does not understand and offers to transfer to a human. Every transfer includes the full conversation transcript so the caller never repeats themselves.
Yes. Modern speech recognition handles accents well. Background noise is more challenging. We test with real-world audio conditions during setup and tune recognition thresholds. In quiet environments, accuracy exceeds 95%. In noisy environments, it drops to about 85% and transfers more calls to humans.
Yes. We route your existing phone numbers through the voice agent. No number changes, no new hardware. If you use a cloud phone system like Twilio, 3CX, or Vonage, integration takes about a day.
Basic deployment with appointment booking and FAQ: 3-4 weeks. Complex flows with CRM integration and lead qualification: 6-8 weeks. You hear a working demo of your agent in week 2.
A voice agent costs EUR 0.30-0.50 per call. A human agent costs EUR 3-8 per call depending on duration and salary. If you handle 100 calls per day, the agent pays for itself in the first month. We provide exact ROI projections based on your call volume.
Ready to build something extraordinary?
Let's turn your vision into reality. Our team is ready to help you create software that makes a difference.