Phone bajta raha. Kisi ne nahi uthaya. Customer competitor ke paas chala gaya.
The phone kept ringing. Nobody picked up. Your customer went to a competitor.
We build AI voice agents that answer every call 24/7, book appointments and send you the lead in under a minute, in Hindi, Hinglish or English.
Incoming call
Hotel Shanti Residency
Ringing…
Calls missed by small businesses since you opened this page:
Pick your agent's voice
The voices we offer.
Tap a voice to hear it. Your callers will hear the one you choose, in Hindi, Hinglish or English.
The problem
Har missed call ek customer hai jo kabhi wapas nahi aaya.
Every missed call is a customer who never came back. The global call data, plus what's changing in India:
- 44%
of business calls go unanswered.
Source: Invoca 2026 data on 70M calls, via JustCall - 27%
of calls are missed during business hours.
…and 40–60% after hours.
Source: Beancount - 69%
of missed business calls get no callback within 48 hours.
Source: Quo, 16M+ calls - $125–$350
estimated lost revenue per missed call for a service business.
Global figure for service businesses, in USD.
Source: AInora - 60%
of new voice AI deployments in India now include Hindi or regional languages.
Up from 20% in 2024.
Source: Edesy
Hear how it handles your callers.
A missed call, minute by minute
7:42 PM
Phone bajta hai.
Reception khaali hai. A family wants a room for tonight.
7:43 PM
Koi nahi uthata.
The phone rings out. They hang up.
7:45 PM
Woh doosre hotel ko call karte hain.
Someone picks up there. The booking is gone.
Rewind. Same call, with AI:
7:42 PM
Phone bajta hai.
Your AI agent picks up on the first ring, in Hindi.
7:43 PM
Booking ho jaati hai.
Answers questions, checks availability, confirms the room.
7:44 PM
WhatsApp pe summary.
Name, number, dates and booking, on your WhatsApp before you've checked your phone.
WhatsApp · Zerobell
Nayi booking: Amit Verma, Deluxe room, kal 1 raat. Customer ko confirmation bhej diya ✅
- हिंदी
- Hinglish
- English
- Hotels
- Clinics & labs
- Coaching
- Real estate
- Service centres
- COD confirmation
- WhatsApp alerts
- 24/7
Lost revenue calculator
What are missed calls costing you?
Move the sliders to match your business. The math updates live.
Estimated loss ₹81,188 per month. Recover up to ₹56,831 per month.
You're losing about
₹81,188/month
With Zerobell, recover up to
₹56,831/month
Our plan pays for itself in 6 days.
Estimate only, not a guarantee. Assumes 4.33 weeks per month, that an always-on AI agent recovers 70% of the revenue currently lost to missed calls, and a plan price of ₹9,999/month. Your results will vary.
How it works
Teen steps mein live. Baaki kaam hamara.
- Setup in Hindi, Hinglish or English
- Leads straight to your WhatsApp
- WhatsApp follow-up to your customer
- 1
We learn your business
Your calls, FAQs, rates, timings and booking rules. In Hindi, Hinglish or English, whatever your customers speak.
- 2
We build & test your agent
A custom AI voice agent trained on your business, tested on real scenarios until it sounds like your best staff member.
- 3
It goes live on your number
Forward your existing number. Every call gets answered, and every lead lands straight on your WhatsApp.
Hear it yourself
Hear exactly what your callers will hear.
Same scenario, two languages. Flip the switch and listen.
Kal subah ke liye room booking
Sample call
Ghar se sample collection booking
Sample call
COD order confirm karne ki call
Sample call
Batch timing aur fees ki enquiry
Sample call
Better than a recording:
Industries
Built for businesses that live on the phone.
Everything included
An entire front desk. In one AI agent.
Hindi, Hinglish & English
Speaks the way your customers speak, and switches language mid-call when they do.
24/7 call answering
Raat ho ya Sunday, first ring, every time.
Books into your calendar
Google Calendar, booking tools or a simple Google Sheet.
WhatsApp · now
New lead: Priya, lab test, kal 8 AM
Instant WhatsApp alerts
Lead summary on your WhatsApp seconds after the call, plus WhatsApp follow-up to the customer.
Recordings & transcripts
Every call recorded, transcribed and searchable.
Human handoff
Important caller? It transfers the call to you or your staff live.
CRM / Google Sheets sync
Leads land where your team already works.
Outbound calls
COD confirmations, reminders and follow-ups at scale.
- हिंदी
- Hinglish
- English
- Hotels
- Clinics & labs
- Coaching
- Real estate
- Service centres
- COD confirmation
- WhatsApp alerts
- 24/7
Compare
Receptionist vs voicemail vs Zerobell
Availability
- Receptionist
- Office hours
- Voicemail
- Rings out / switched off
- Zerobell
- 24/7/365, live
Cost per month
- Receptionist
- ₹15,000–₹25,000 salary (est.)
- Voicemail
- Free
- Zerobell
- From ₹4,999/mo
Missed calls
- Receptionist
- Lunch, leave, busy lines
- Voicemail
- Almost every caller hangs up
- Zerobell
- Answers every call, even several at once
Languages
- Receptionist
- Depends on the person
- Voicemail
- None
- Zerobell
- Hindi, Hinglish & English
Instant lead alerts
- Receptionist
- A register, maybe
- Voicemail
- No
- Zerobell
- Yes, on WhatsApp
Sick days
- Receptionist
- Yes
- Voicemail
- n/a
- Zerobell
- Never
Salary figures are rough estimates for comparison only.
Pricing
Costs less than the calls you're missing.
Simple monthly plans. Every one starts with a pilot.
Starter
For a single shop or clinic that just needs every call answered.
Billed monthly
- 1 custom AI voice agent
- Hindi, Hinglish & English
- 24/7 answering on your number
- WhatsApp lead alerts
Growth
For busy businesses that want the AI to book customers too.
Billed monthly
- Everything in Starter
- Appointment & booking management
- Google Sheets / CRM sync
- Live human handoff
- WhatsApp follow-up to customers
Pro
For multi-branch or high-volume businesses.
Billed monthly
- Everything in Growth
- Outbound calls (COD, reminders)
- Multiple numbers / branches
- Monthly tuning & priority support
Setup fee may apply. Prices exclude GST. Every plan includes a 14-day pilot.
Your business could be here.
We're a new agency and we're not going to pretend otherwise. Be one of our first pilot partners: we'll work closely with you, tune your agent personally, and your results become our first case study (with your permission).
- Pilot partner #1
- Pilot partner #2
- Pilot partner #3
- Pilot partner #4
FAQ
Questions, answered.
Still unsure? Ask our AI directly. It knows the answers too.
Haan! It speaks Hindi, Hinglish and English, and switches mid-call when the caller does. Call our demo number and try it in whichever language you like.
We recommend being upfront: the agent can introduce itself as your AI assistant. Most callers care far more that someone picked up and solved their problem.
It never guesses. It takes a detailed message, offers a callback, or transfers the call to you live, based on rules you set. You get a WhatsApp summary either way.
Yes. You keep your number and use call forwarding, which most Indian mobile and landline operators support: all calls, only when busy, or only when unanswered.
Most agents go live within 7 to 10 days of our first call, including testing in your customers' language.
Recordings and transcripts are stored encrypted and only your team and ours can access them. We're happy to sign an NDA, and we never use your calls to train public models.
Every call answered. Starting today.
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