Your 24/7 AI Phone Receptionist.
Never lose a high-value client to voicemail again. Autonomous Voice AI agents that answer phone calls, qualify intent, and book calendar slots in real-time.

Live Call Simulation
+1 (415) 890-CALN • Active WebRTC Stream
Engineered for High Reliability
Enterprise voice infrastructure that never stutters, disconnects, or hallucinates.
Inbound Call Reception
Assign a dedicated phone number. The agent greets callers with human-like prosody, understands nuanced requests, and answers FAQs with zero latency.
Real-Time Calendar Sync
Directly queries your Google, Outlook, and Apple calendars to verify available slots without ever double-booking or creating schedule conflicts.
WhatsApp & SMS Summaries
Immediately sends the caller a WhatsApp confirmation link, meeting calendar invite, and post-call action items via Sendish integration.
Sub-300ms Ultra-Low Latency
Engineered on modern WebRTC streaming architectures so conversations feel natural, responsive, and completely fluid.
Traditional Voicemail vs. Calendeur Voice AI
| Feature | Traditional Voicemail | Calendeur Voice AI |
|---|---|---|
| Caller Conversion Rate | ~8% (Most hang up) | 78% (Instant meeting booked) |
| Time to Booking | 24-48 hours of phone tag | Instant (Under 90 seconds) |
| Operating Hours | Business hours only | 24/7/365 Non-stop availability |
| CRM & WhatsApp Sync | Manual typing & notes | 100% Automated Instant Delivery |
Start answering calls with autonomous AI today.
Setup takes under 2 minutes. Choose your agent's voice, connect your calendar, and share your number.