WhatsApp Business Calls: What They Are and How to Use Them

WhatsApp Business calls are the feature that allows you to make and receive voice calls (and video calls) through WhatsApp, using the same WhatsApp Business account. You don't need a landline or a separate app: with the app installed and an internet connection, you can call your customers or answer their calls, just as you would with a personal contact, but with tools designed for businesses.

Why do they matter to an SME?

For a small business, WhatsApp Business calls are key because many customers prefer to talk by voice rather than write. Especially for queries that require explanation: a quote, a question about a product, a complaint. Also, being integrated into the same app where you already manage messages, you don't have to jump from one place to another or give out your personal number.

Another point: WhatsApp calls use mobile data or WiFi, so they don't consume minutes from your phone plan. And for the customer, it's the same: they can call you at no extra cost if they have data or WiFi.

Concrete example

Imagine a clothing store that receives a message: 'Hi, do you have these jeans in size 42?'. Instead of writing a long response and risking it not being understood, the owner taps the call icon and in 30 seconds clarifies to the customer that yes, they have it, describes the fit, and tells them they will reserve it. The customer is happy, the sale moves forward, and nothing was misunderstood.

Common mistakes

• Using your personal number for WhatsApp Business: you mix your private life with the business and lose the tools of the business app.
• Not setting up a greeting or away message: if the customer calls and you don't answer, at least they should receive an automatic message afterward.
• Thinking that WhatsApp calls replace a phone system: they are for one-off conversations, not for a switchboard with multiple lines.
• Not having a defined schedule: if you take calls at any time, the customer always expects an immediate response.

How to start using them

1. 1Download WhatsApp Business from the official store (Google Play or App Store) and register with a number dedicated to your business.
2. 2Complete your profile: business name, photo, hours, address, and description.
3. 3Enable calls from Settings > Account > Privacy > Calls, and choose who can call you (everyone, your contacts, or no one).
4. 4Set up away messages and greetings so that, if you can't respond, the customer receives an automatic reply.

How it's used in practice: the day-to-day of an SME

Imagine a beauty salon that receives an inquiry via Instagram: 'Do you have an appointment for tomorrow at 10?'. The owner opens Wando, sees the message in the inbox, and the AI suggests a ready-to-send reply: 'Hello! Yes, we have an appointment at 10. Shall I confirm it?'. She approves it with a click and that's it, without typing anything.

If the customer replies with a 45-second audio explaining they want a makeover, Wando transcribes it and the AI suggests a response that considers what they said. The owner edits it if needed and sends it. All from a single inbox, without switching apps.

For a real estate agency: a prospect asks about an apartment. The AI suggests a reply with the listing details and a link to the gallery. If the prospect wants to schedule a visit, the agent transfers them to a direct call from the phone, as always.

• You receive the message in the Wando inbox.
• The AI suggests a response based on your history.
• You approve it with a click (or edit it).
• You send it. The AI learns from your correction for next time.

What it is confused with and how it differs

Wando is often confused with a classic chatbot. A flow chatbot works like a tree: if the customer says '1', it goes one way; if they say '2', another. Programming it takes time and you have to maintain it every time your business changes.

Wando is not that. The AI suggests responses and you approve them. There is no tree to draw: the AI learns from the real responses your team gives. If a customer asks something new, the AI tries a suggestion and you correct it; the next time, it already knows.

Another common confusion: thinking that Wando responds on its own. By default, it doesn't. The AI proposes and a human approves. You can set up auto-responses by schedule, but for day-to-day, your team has the control. That is human-in-the-loop: the AI makes you faster, it doesn't replace you.

What happens if you ignore it

If you don't use a tool like Wando, your team wastes time writing responses one by one. A business that receives 100 messages per day can take hours just to respond. Every minute a customer waits is a sale that cools off.

Also, without an organized inbox, messages get lost. A complaint that goes unanswered on WhatsApp can become a negative review on Google or social media. And that is visible, and it shows.

The concrete consequence: you respond slower, you lose sales, and your reputation suffers. It's not a technology problem, it's a money problem.

How it relates to Meta's official API

Wando uses Meta's WhatsApp Cloud API, the official version for businesses. This means that the messages we send and receive comply with WhatsApp's rules: approved templates, conversation windows, and per-conversation pricing set by Meta that varies by country.

We do not use the WhatsApp Business app directly, but the API. This allows multiple agents to handle conversations from a single inbox, AI to intervene, and you to have message and campaign statistics. Everything the manual app doesn't give you.

One detail: templates (HSM) used to start conversations must be approved by Meta, and this can take up to 48 hours. It's not something Wando controls; it's a Meta rule. If you need to run a campaign, you have to plan with that margin in mind.

When it does NOT apply or is not suitable

Wando is not for everyone. If your business receives fewer than 10 messages per day and you handle them yourself from your phone, you probably don't need it. The free WhatsApp Business app is enough for you.

It's also not suitable if your team is not willing to review and approve suggestions. AI learns from human corrections; if no one corrects, the AI doesn't improve and the system becomes a chore.

And be careful: Wando does not replace a full CRM. If you need a complex sales pipeline, integrations with billing systems, or a very detailed customer history, you'll need to complement it. Wando focuses on WhatsApp communication, not managing your entire business.

Common mistakes of those who just understand it

The biggest mistake is thinking that AI will respond on its own from day one. No: AI suggests, you approve. If you expect it to do everything without supervision, you will get frustrated. The value lies in collaboration, not total automation.

Another mistake: not configuring auto-response hours. If your business closes at 20:00 and a customer writes at 23:00, without an auto-response it stays silent. With a well-configured automatic response, the customer knows they will be attended to the next day.

It is also common to underestimate the approval time for Meta templates. If you plan a campaign for Monday and upload it on Friday, it may not be approved in time. The rule is simple: templates are uploaded at least 48 hours in advance.