Yes, one AI voice agent can serve your phone line, your WhatsApp Business number and your website at the same time, with the same instructions, knowledge and data fields. Customers call your number, tap call on WhatsApp, or click a voice button on your site, and get the same answers in their language. The agent can also send WhatsApp or SMS messages during or after a call (payment links, confirmations, locations) and follow up on WhatsApp when a call isn't answered. Every conversation lands in one log. See the AI voice agent and WhatsApp voice AI pages.
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The three voice channels
| Channel | How customers reach you | Best for |
|---|---|---|
| Phone calls | Your virtual or existing number, inbound and outbound | Everyone; outbound campaigns and reminders |
| WhatsApp voice calls | Tapping call on your WhatsApp Business number | Customers who live in WhatsApp and avoid unknown numbers |
| Website voice widget | A voice button on your site | Visitors who want an answer without filling a form |
Why one agent beats three bots
- Same answers everywhere. Prices, policies and timings come from one set of instructions and one knowledge base.
- One place to update. Change an offer once, not in three tools.
- One record per customer. Calls from every channel land in the same log with the same fields, and go to the same CRM or sheet.
- One language setup. Hindi, Hinglish, Telugu, Tamil, Gujarati and other Indian languages work the same on every channel.
How the channels work together
Missed call → WhatsApp. An outbound call goes unanswered; the agent sends a WhatsApp message with the same information and a link to call back.
Phone call → WhatsApp confirmation. A customer books an appointment on a call; the confirmation, location and preparation instructions arrive on WhatsApp.
Website → callback. A visitor talks to the widget at night and asks for a call from sales; the agent books a slot and your team calls them in the morning.
WhatsApp call → payment. A customer calls on WhatsApp about an overdue bill; the agent sends a payment link in the same chat.
Setting it up
- Build the agent: instructions, knowledge base, language and data fields.
- Connect a phone number: an Indian virtual number, or bring your existing number. See virtual phone numbers.
- Connect WhatsApp Business with calling enabled on the WhatsApp Business Platform.
- Add the website widget: generate the embed code with the voice widget generator and paste it on your site.
- Set up messages: WhatsApp templates for confirmations, payment links and follow-ups.
- Connect your CRM or sheet so every channel writes to the same place.
Common uses
- Clinics: book on the phone or website, confirm on WhatsApp, remind the day before.
- D2C brands: confirm COD orders by call, follow up on WhatsApp if unanswered. See COD confirmation: AI call vs WhatsApp vs IVR.
- Real estate: qualify website visitors by voice, book site visits, send the location on WhatsApp.
- Lenders: payment reminder calls with a payment link on WhatsApp.
Cost
Voice minutes cost Rs 4-6 per started minute on Edesy depending on your prepaid top-up, whichever channel the conversation happens on, and unanswered calls are free. Meta's WhatsApp message charges apply to any WhatsApp messages sent.
Start with one channel, add the others
Most businesses start with phone calls, then add WhatsApp follow-ups and the website widget once the agent's answers are right. Sign up free and test the agent on your own phone first, or talk to us about connecting WhatsApp. Before you buy any platform, run our 30-minute AI voice agent test.