The new WhatsApp Business Calling API revolutionizes how companies serve their customers.
Now, any user can make a voice call directly from a WhatsApp chat, and with Fonvirtual integration, you can manage these calls with full context, from a single panel, without losing the conversation thread.

What is WhatsApp Business Calling API?

The WhatsApp Business API already allowed automating messages, integrating chatbots, and managing conversations from external platforms.
With the WhatsApp Call API, you can now move from text to a call without leaving the app, simply by pressing the WhatsApp Calling button.
This not only improves communication speed but also removes friction: the customer doesn’t need to dial a number or switch apps.

Benefits of integrating API Calling with Fonvirtual

At Fonvirtual, we have implemented the WhatsApp Business Calling API so companies can make the most of this new feature:

1. Unified call handling: Receive and answer WhatsApp calls from the same panel where you manage other channels.
2. Maintain conversation context: One of the biggest customer service problems is when a conversation “breaks” while switching channels. With Fonvirtual’s integrated WhatsApp Business Calling API, the full conversation history is always visible.
3. Artificial intelligence throughout the process: As usual with Fonvirtual’s calling platform, you can analyze each call, get real-time transcriptions, and receive instant conversation summaries.

Benefits for companies and customers

Integrating WhatsApp Call API into your customer service system with Fonvirtual offers:

• Speed: switch from chat to call without interruptions.

• Personalization: access the full context before answering.

• Convenience: customers use a familiar and trusted channel.

• Centralization: all service channels in a single panel.

A step further toward omnichannel support

The arrival of WhatsApp Business Calling API marks a milestone in omnichannel strategy.
With Fonvirtual, you can integrate WhatsApp Calling, phone, email, web chat, and more into a single platform.
This means your team serves customers faster, more personally, and with all the information at hand.

The WhatsApp Business Calling API is not just a new feature: it’s an opportunity to improve speed, personalization, and efficiency in customer service. With Fonvirtual, this technological leap is just one click away.

Frequently Asked Questions about WhatsApp Business Calling API

What’s the difference between WhatsApp Calling and WhatsApp Business Calling API?

WhatsApp Calling is the app feature for user-to-user calls, while WhatsApp Business Calling API is designed for companies to manage these calls professionally and connected to their customer service systems.

Do I need a special number to use WhatsApp Business Calling API?

Yes, you need a verified WhatsApp Business number, which Fonvirtual can configure and integrate for you.

How can I avoid losing context when a customer switches from chat to call?

With Fonvirtual’s integrated WhatsApp Business Calling API, the chat history appears on screen before and during the call, so the customer doesn’t have to repeat information.