Every Customer Call Answered. Every Order Closed.
Autonomous AI voice telephony, multimodal WhatsApp sales, supplier bill scanning, and 1-tap direct UPI refunds. Supports 95+ languages and replies in your customer's own, including natural mixed-language speech.
Sample Call (Simulation)
SampleCaller: +91 98765 43210 (Chennai, India)
“Swift VXI ஸ்டாக்கில் இருக்கா? போட்டோ WhatsApp-ல அனுப்புங்க.”
“வணக்கம்! Swift VXI 12 யூனிட்கள் ஸ்டாக்கில் உள்ளன. போட்டோக்களும் விவரங்களும் உங்கள் WhatsApp-க்கு அனுப்பிவிட்டேன்.”
*In own-delivery mode payments and refunds go direct by UPI, with no gateway in between. In Shiprocket + Razorpay mode, Razorpay's own charges apply.
Connect your own accounts
- WhatsApp BusinessThrough your own Meta app
- TwilioYour own phone number
- RazorpayYour own account
- ShiprocketYour own account
- UPIDirect payment and refund links
- LiveKitReal-time voice
Speaks Your Customer's Language.
These sample conversations show how CallThink AI answers a customer call, checks your inventory and sends the details on WhatsApp. They are shown in six languages; CallThink AI supports 95+ and replies in the caller's own.
CallThink AI Agent
Inbound Caller: +91 98765 43210 • Tamil
“வணக்கம்! 25 கிலோ பொன்னி அரிசியும் 5 லிட்டர் சன்ஃப்ளவர் ஆயிலும் ஸ்டாக்கில் உள்ளன. மொத்த பில் ₹2,150. பில்லும் UPI பேமெண்ட் லிங்கும் உங்கள் WhatsApp-க்கு அனுப்பிவிட்டேன்.”
Caller's WhatsApp (Delivered Live In-Call)
Photo and payment cardInvoice and UPI payment link delivered
Simulate Caller Query (Your Input)
Six Autonomous Engines. One Unified Store Intelligence.
Engineered specifically for Indian retail operations. Every engine operates in real time to maximize sales conversions and eliminate repetitive manual overhead.
Autonomous AI Voice Receptionist
24/7 Real-Time AI Phone Call Agent
Never miss a customer call. CallThink AI answers incoming telephone calls in the caller's own language, with 95+ languages supported. It queries your live store stock, quotes instant pricing, sends photos to the caller's WhatsApp, and books orders over the phone.
- Natural, conversational voice replies in real time
- Supports 95+ languages and replies in the language the caller speaks, including mixed-language speech
- Sends product photos & specs to caller's WhatsApp during the call
- Books confirmed customer orders directly from the phone conversation
Multimodal WhatsApp Commerce Bot
Photo Recognition, Orders & Policy Answers
Customers send product photos, text queries, or voice messages on WhatsApp. The AI visually identifies items, confirms live stock from your catalog, answers store policies from your uploaded documents, and processes orders — all automatically.
- Customer sends photo → AI identifies product → checks live stock
- Store policy & warranty answers from your uploaded knowledge base
- OTP-secured order cancellation sent to customer's WhatsApp
- UPI payment QR code generation for instant checkout
Smart Supplier Bill Scanner
Paper Invoice to Digital Catalogue
Stop entering wholesale bills manually. Snap or upload any supplier invoice, challan, or PDF. CallThink AI reads every line item, quantity, and price, then updates your product catalog automatically with stock changes and cost diffs.
- Reads wholesale supplier bills, GST tax invoices, and delivery challans
- Fuzzy item matching — intelligently updates existing product stock
- Detects new vs existing items and flags cost changes for review
- Zero manual data entry for shop owners and store managers
1-Tap Direct UPI Refunds
OTP-Verified Cancellation & One-Tap Refund
When a customer requests cancellation, the AI sends a 4-digit OTP to their WhatsApp. On verification, stock is auto-restocked, the order is cancelled, and the store owner gets a pre-filled UPI deep-link to refund with one tap. In own-delivery mode no payment gateway sits in between.
- 4-digit WhatsApp OTP secures every cancellation request
- Instant stock restock when order is cancelled
- 1-Tap UPI deep-link opens Google Pay / PhonePe pre-filled
- In own-delivery mode, payments and refunds go direct by UPI with no gateway in between
Conversational Business Intelligence
Ask Your Shop Data in Plain Language
Ask questions like 'How much did I sell today?' or 'Which product sold the most this week?' in natural conversational language. The AI queries your live orders and inventory database and returns instant financial snapshots with chart data.
- Today's revenue, orders, voice calls, and pending refunds at a glance
- Low-stock count with proactive threshold alerts
- Natural language — no SQL or Excel skills required
- Returns structured metrics and chart data for business decisions
AI-Powered Store Alerts & Reorder
Low Stock Warnings & Auto Purchase Order Drafts
CallThink AI continuously monitors inventory levels and generates instant alerts when products fall below stock thresholds. One tap auto-generates a pre-filled vendor Purchase Order draft for immediate wholesale restocking.
- Low-stock notifications before shelves go empty
- 1-tap vendor Purchase Order draft with product, quantity, and cost
- Refund pending alerts when cancellations require store action
- Every store's data sits in its own private schema, separate from every other store
Zero-Click Courier Dispatch with Native Shiprocket Integration
Paste your Shiprocket API credentials once into the CallThink AI Android App. When a customer confirms an order on a phone call or WhatsApp, the AI automatically parses the delivery address, books the shipment with Delhivery/Bluedart, generates the AWB label, and sends a live WhatsApp tracking link to the customer.
Plug API Key
Your rates & wallet
Voice Address OCR
Pincode auto-extracted
Auto AWB Booking
Pickup scheduled
WhatsApp Tracking
Live link sent to buyer
Fastest Courier Auto-Assigned
Delhivery • Blue Dart • DTDC • Shadowfax • Ecom Express
Run your store from any browser.
The same orders, products and AI assistant as the Android app, on a bigger screen. Sign in on your laptop and pick up exactly where your phone left off.
CallThink AI Store Owner Android App
Run your entire retail showroom from your phone. Receive instant call alerts, snap supplier invoices with your camera, and settle refunds with zero payment gateway fees.
1-Tap Direct UPI Refund
Zero Gateway FeesWhen a customer cancels via OTP, the app generates a pre-filled NPCI UPI deep-link. Tap once to open Google Pay, PhonePe, or Paytm with the exact refund amount and customer VPA already filled in.
Mobile Camera Bill Scanner
Instant Wholesale IngestionSnap a picture of any wholesale delivery challan, supplier bill, or GST invoice using your phone camera. The AI parses every line item and updates store stock counts immediately.
In-App WhatsApp AI Tester
Test Before Going LiveSimulate real customer WhatsApp conversations inside the app. Test product queries, order booking, and OTP-secured cancellation flows before connecting your actual WhatsApp Business number.
In-App Voice Call Simulator
Hear Your AI Agent RespondTest your AI voice agent directly from the app by typing customer queries. See exactly how the AI responds to product questions, price checks, and order bookings — in your store's language.
Priority Push Notifications
Never Miss an UpdateGet instant alerts for high-value orders, automated Shiprocket courier dispatches, 1-tap refund approvals, and low-stock warnings before shelves go empty.
AI Business Instructions Editor
Custom Rules for Your StoreWrite custom business rules and sales instructions for your AI agent directly from the app — like 'Always mention our EMI offers' or 'Reply only in Tamil'. The AI applies these on every call and WhatsApp message.
CallThink Admin
Sample store • Demo data
Grocery Order #GRO-8924 cancelled via customer WhatsApp.
Opens your UPI app with the amount filled in.
How CallThink AI compares
A side-by-side look at CallThink AI, traditional phone systems, front-desk staff and basic chatbots.
| Capability | CallThink AI | Traditional IVR | Front-desk staff | Basic chatbots |
|---|---|---|---|---|
Phone answering How incoming calls are handled | Natural spoken conversation | Keypad menus and recorded prompts | Depends on who is available | No phone support |
Languages How customers are understood | 95+ languages, replies in the caller's own | A fixed set of recorded languages | The languages the team speaks | Usually text in one or two languages |
Availability When customers get an answer | Calls and WhatsApp, around the clock | Always on, limited to menu options | Working hours and shifts | Always on for text messages |
Orders and stock Working from your real catalogue | Live catalogue, stock and order capture | Usually not connected to stock | Manual lookup and entry | Depends on the integration |
Payments and refunds Collecting and returning money | UPI or Razorpay, with one-tap UPI refunds | Not supported | Handled by hand | Payment links, varies by provider |
Supplier bills Keeping stock up to date | Scan a bill, review, then confirm | Not available | Typed in by hand | Not available |
Owner control Changes made by automation | AI stock changes wait for your confirmation and can be undone | Not applicable | Direct edits | Not applicable |
The other columns describe each category in general, not a specific product.
Built for Any Business Driven by Customer Calls
From tiles, granite, cement, and real estate to automobile dealerships and supermarkets — CallThink AI handles price quotes, WhatsApp catalog cards, and orders instantly.
Tiles, Granite & Marble Showrooms
Buyers call daily for per-sqft pricing, slab dimensions, and finish availability. The AI answers in Tamil, Hindi, or Telugu, sends high-res tile catalog shade cards and slab photos on WhatsApp during the call, and tracks warehouse stock.
Autonomous Workflows Handled:
Aravindhan N
Founder & Chief Executive Officer
M Arul
Co-founder
“Every Indian retailer deserves an assistant that answers every call and every message.”
In India, retail runs on real-time conversations. When a customer calls a car showroom or local store, they expect immediate answers in their own language. If the call goes unanswered, they call your competitor.
We built CallThink AI from the ground up to address this exact reality: real-time voice calls, instant WhatsApp catalog cards, camera bill scanning, and direct bank-to-bank UPI settlements that keep gateway fees out of the picture.
Plans for Every Stage of Your Store
Choose the plan that matches your call and message volume. In own-delivery mode, payments go direct by UPI with no gateway in between.
Starter Retail
Ideal for single-location shops, kiranas, and boutiques starting with autonomous AI commerce.
- AI Voice Agent — 500 call minutes / month
- AI replies in the caller's own language (95+ supported)
- WhatsApp AI bot with photo product matching
- Camera Supplier Bill Scanner (50 scans/month)
- 1-Tap UPI Refund with OTP cancellation flow
- Android Store Owner App
- Email & WhatsApp founder support
Growth Commercial
For high-volume supermarkets, busy automobile showrooms, and multi-counter pharmacies.
- AI Voice Agent — 2,500 call minutes / month
- AI replies in the caller's own language (95+ supported)
- Unlimited WhatsApp AI customer conversations
- Unlimited Supplier Invoice OCR & auto-sync
- Conversational Business Intelligence — ask in natural language
- Low-stock alerts with auto vendor Purchase Order drafts
- Digital UPI invoices with QR code per order
- Direct Founder VIP onboarding
Enterprise
For regional retail chains, multi-location dealership groups, and high-volume distributors.
- Unlimited AI Voice Call Minutes
- Custom branded AI voice persona & store welcome message
- Store knowledge base — upload legal docs, policies, catalogs (RAG)
- Private data schema per store
- Custom AI business instructions & system prompt
- Priority phone & WhatsApp support
- Quarterly business review with Founder Aravindhan
Everything You Need to Know About CallThink AI
Clear answers for retail store owners, automobile dealers, and supermarket managers.
How does CallThink AI answer telephone calls so naturally?
How do 1-Tap UPI Refunds work?
Can CallThink AI understand natural, mixed-language customer conversations?
How does the Camera Supplier Bill Scanner update my store inventory?
How does CallThink AI automate courier shipping through Shiprocket?
Is my store's pricing and customer data kept private and secure?
Can I get personalized onboarding from founder Aravindhan N?
Have custom questions for your store?
Connect directly with Founder Aravindhan N for tailored voice demos & custom catalog ingestion.