How to setup WhatsApp API call
Posted: Thu Mar 27, 2025 7:20 am
Get started with WhatsApp API calls in these three easy steps.
Step 1: Set up WhatsApp API
A screenshot of the respond.io platform
Get access to the WhatsApp Business API. Sign up with a WhatsApp Business Solution Provider (BSP) like respond.io. Then, set up your phone numbers and connect them to your WhatsApp API account.
Step 2: Enable WhatsApp Calling in Settings
A screenshot of enabling WhatsApp Business Calling API in respond.io settings
Access the settings menu within the WhatsApp Business API dashboard. After that, enable or disable the voice calling feature and customize the permissions as required.
Step 3: Send a request to your desired contact
Send a permission request to your contacts. Once your request is accepted, you can call them within the 72-hour call window.
A screenshot of the respond.io platform showing how to send a WhatsApp Business Calling API authorization request
Now that you have set up the WhatsApp API call, what can you use it for? We will see that later.
WhatsApp Api Call Use Cases
There are three common use cases for WhatsApp advertising data API Call - sales, marketing, and support. As mentioned above, invitations are best for complex explanations or urgent situations.
An image showing the three use cases of WhatsApp Business Calling API: sales, marketing, and support
Let's see how agents can use WhatsApp API Call for their daily tasks.
Enable higher sales and revenue
Sales reps can use WhatsApp API calls to follow up with leads immediately after receiving an inquiry, ensuring prospects remain engaged and reducing the chances of losing them to competitors.
For example, an agent might call a prospect to clarify questions about a product or service, guiding them through the purchasing process. Personalized sales pitches delivered through a call allow agents to better address specific needs, making it easier to close deals.
Additionally, voice calls can be used to upsell or cross-sell products during follow-ups, creating opportunities to increase revenue.
Step 1: Set up WhatsApp API
A screenshot of the respond.io platform
Get access to the WhatsApp Business API. Sign up with a WhatsApp Business Solution Provider (BSP) like respond.io. Then, set up your phone numbers and connect them to your WhatsApp API account.
Step 2: Enable WhatsApp Calling in Settings
A screenshot of enabling WhatsApp Business Calling API in respond.io settings
Access the settings menu within the WhatsApp Business API dashboard. After that, enable or disable the voice calling feature and customize the permissions as required.
Step 3: Send a request to your desired contact
Send a permission request to your contacts. Once your request is accepted, you can call them within the 72-hour call window.
A screenshot of the respond.io platform showing how to send a WhatsApp Business Calling API authorization request
Now that you have set up the WhatsApp API call, what can you use it for? We will see that later.
WhatsApp Api Call Use Cases
There are three common use cases for WhatsApp advertising data API Call - sales, marketing, and support. As mentioned above, invitations are best for complex explanations or urgent situations.
An image showing the three use cases of WhatsApp Business Calling API: sales, marketing, and support
Let's see how agents can use WhatsApp API Call for their daily tasks.
Enable higher sales and revenue
Sales reps can use WhatsApp API calls to follow up with leads immediately after receiving an inquiry, ensuring prospects remain engaged and reducing the chances of losing them to competitors.
For example, an agent might call a prospect to clarify questions about a product or service, guiding them through the purchasing process. Personalized sales pitches delivered through a call allow agents to better address specific needs, making it easier to close deals.
Additionally, voice calls can be used to upsell or cross-sell products during follow-ups, creating opportunities to increase revenue.