An AI voicebot is not just a chatbot with a phone number. You pay for telephony, speech recognition, speech synthesis, AI reasoning, and integrations. That makes pricing look confusing unless you break it into parts.
This guide uses real-world ranges and aligns with how Syntalith packages voicebots today.
AI Receptionist Pricing (Setup + Monthly, excl. VAT)
| Package | Setup (one-time) | Monthly | Included calls | Timeline |
|---|---|---|---|---|
| LITE Voice | from €929 net setup | €229/mo | 400 calls/mo | 1-2 weeks |
| GROWTH Voice | from €1,859 net setup | €349/mo | 750 calls/mo | 3-4 weeks |
| ENTERPRISE Voice | Let's talk | Let's talk | 1,500 calls/mo | 5-7 weeks |
- Quote in 24 hours after a 30-40 minute discovery call.
- Pricing covers telephony, ASR/TTS, AI, EU hosting, monitoring, and support.
- GDPR-compliant EU hosting; data not used for training.
ROI and Business Impact (Realistic)
AI receptionist pays off when call volume and missed-call rate are high. The main drivers are:
- Calls/day and % missed after hours
- Average handle time per call
- Value per booking/lead and conversion from recovered calls
- % of calls the agent can automate end-to-end
- Integration scope (CRM/calendar/ERP)
Quick estimate:
Monthly benefit = (automated calls x minutes saved x cost/minute)
+ (recovered calls x conversion rate x avg order value)
- monthly fee
Payback = setup fee / monthly benefitTeams with 20+ calls/day often see payback in 1-2 months; lower volume usually takes longer. Actual results depend on volume, conversion, and integrations.
What Drives the Price
1. Call volume and duration
More calls and longer calls increase usage costs. A short appointment booking call costs less than a 6-minute support call.
2. Speech recognition and synthesis quality
Premium voices and higher-accuracy STT models cost more per minute, but reduce errors and repeat calls.
3. Integrations
Simple CRM logging is cheaper than deep integrations with ERPs, calendars, or custom systems.
4. Language coverage
Each additional language adds testing, prompt tuning, and voice model configuration.
5. Call routing and handoff
Integrations with PBX, IVR, or live agent handoff add setup work and testing.
Usage Costs: What to Expect
Usage costs depend on your telephony provider, speech stack, and AI model choice. Typical components include:
- Telephony minutes (Twilio, Plivo, or SIP)
- Speech-to-text (Google, Azure, Amazon, Deepgram)
- Text-to-speech (Google, Azure, ElevenLabs, Amazon Polly)
- AI model usage (OpenAI, Anthropic, or alternatives)
At typical SMB call volumes (hundreds to low thousands of minutes), costs are usually in the hundreds of euros per month, not thousands. Ask for a range based on your call volume and average call length.
What Is Included (Typical Syntalith Setup)
Setup fee usually covers:
- Voicebot scenario design and testing
- Telephony configuration (Twilio, SIP, or your trunk)
- Calendar and CRM integration
- Post-call summaries and transcripts
- Admin panel and documentation
Monthly fee usually covers:
- Hosting and monitoring
- Included call volume
- Speech recognition and synthesis within limits
- AI model usage within limits (OpenAI API or alternative providers as configured)
- Support and minor updates
Build vs Buy vs Custom
Buy a self-serve platform
Good for simple routing or FAQs if you have a technical team. Lower monthly cost, higher internal effort, limited customization.
Custom build (Syntalith approach)
Best for appointment booking, lead qualification, or business-critical calls where quality matters. Higher setup, but lower operational risk and better experience.
Build from scratch
Only makes sense if voice AI is a core product and you have a dedicated engineering team. High cost, long timelines.
Questions to Ask Before Signing
1. What is included in the monthly fee?
2. What happens if we exceed included calls?
3. What is the estimated cost range for our call volume and average call length?
4. Which speech providers are used and why?
5. Is AI model usage included or billed separately?
6. Who owns call recordings and transcripts?
7. What support response time is included?
When It Pays Off
Voicebots make sense when:
- You miss calls outside business hours
- You handle 20+ calls per day
- Appointment booking or lead capture is critical
If you have fewer than 5 calls per day, a chatbot or simple voicemail routing may be enough.
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If you want a fixed quote, book a short discovery call and we will prepare an exact pricing proposal within 24 hours.
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