📞Connect your Voice Agent with WhatsApp
Learn how to connect a WhatsApp Business line to your Dapta Voice Agent so it can receive and make voice calls through WhatsApp.
Connecting a WhatsApp Business line to your Voice Agent allows it to receive and make voice calls through WhatsApp. Once connected, customers can call your agent directly from WhatsApp, and your agent can place outbound calls to WhatsApp numbers.
Important: Meta requires a minimum number of text messages to be exchanged on a WhatsApp Business line before enabling voice calls. We strongly recommend connecting a Text Agent to the line first and exchanging messages before linking a Voice Agent. This ensures the line is fully activated for calls.
Prerequisites
Before you begin, make sure you have the following:
A Dapta Voice Agent already created and configured.
A WhatsApp Business line already connected through Dapta — either from the Text Agent WhatsApp setup or from this Channels panel.
A phone number that is not already registered with another WhatsApp account.
Access to the phone number to receive a verification code via SMS.
Pop-ups allowed in your browser for the Dapta site.
A valid business website or Instagram Business profile URL — Meta requires this to avoid blocks on your WhatsApp Business Account.
Meta Prerequisites
In order to enable WhatsApp Business Calling on your sender, your WhatsApp business account needs to have a messaging limit of at least 2,000 business-initiated conversations in a rolling 24-hour period. To achieve this limit, you need to complete Meta's Business Verification.
If you haven't connected a WhatsApp line yet, follow the step-by-step guide below. If you already have a line connected (e.g., from your Text Agent), you can skip directly to Linking a Voice Agent to an Existing Line.
Accessing Voice Agent Channels
Step 1: In the left sidebar, click on Voice Agents to expand the menu. You will see three sub-items: Agents, Phone Numbers, and Channels.
Step 2: Click on Channels. You will see the Channels overview page with the available channel cards. Click on the WhatsApp Business card or the View Connections link.
Step 3: You will see the WhatsApp connections list showing all your connected lines. Each line displays its Name, Number, Status, linked Text Agent, linked Voice Agent, and Creation Date.
Connecting a New WhatsApp Line
Step 4: Click the New WhatsApp Line button in the top-right corner. A requirements modal will appear.
Review the requirements checklist:
Allow pop-ups for this site.
Have access to the phone number to receive the verification code.
The number must not be registered with another WhatsApp account.
Your business must have a valid website or Instagram Business profile URL.
Check the confirmation box and click Connect.
Step 5: In the WhatsApp Business Connection modal, fill in:
Phone Number — Select your country code from the dropdown and enter your phone number.
Display Name — This is the name your customers will see on WhatsApp. It is pre-filled with your agent's name, but you can change it (max 64 characters).
Click Connect to proceed.
Step 6: A Meta Embedded Signup popup will open in a new browser window. Follow the steps in the popup to:
Log in to your Facebook/Meta account.
Create or select a Meta Business Account.
Create or select a WhatsApp Business Account (WABA).
Register your phone number.
If the popup doesn't appear, make sure pop-ups are allowed for this site in your browser settings.
Step 7: Once the Meta signup is complete, the popup will close automatically and Dapta will register your WhatsApp sender. You will see a success screen confirming your connection with the phone number displayed.
Click Done to finish.
Linking a Voice Agent to an Existing Line
If you already have a WhatsApp line connected (for example, one you set up for a Text Agent), you can link a Voice Agent to it directly from the connections list.
Step 1: In the WhatsApp connections list, find the line you want to use and click the edit icon (pencil) on the right side of the row.
Step 2: In the edit panel, select the Voice Agent you want to link from the dropdown.
Step 3: Click Save to confirm the link.
Reminder: Make sure the line has exchanged text messages before linking a Voice Agent. Meta requires a minimum of text message activity on the line before enabling WhatsApp voice calls. Connect a Text Agent first, exchange some messages, and then link your Voice Agent.
Connecting with an Existing WhatsApp Business Account
If your Dapta account already has a WhatsApp Business Account (WABA) linked from a previous connection, the process is slightly different:
Follow Steps 1 through 5 as described above.
Instead of the Meta popup, you will receive a 6-digit verification code via SMS to the phone number you entered.
Enter the code in the verification modal and click Verify.
Dapta will register the sender and display the success screen once complete.
Tip: If you don't receive the verification code, click Resend Code to have it sent again.
After Connecting
Once connected, each line in the connections list will show:
Name
The display name for the WhatsApp line
Number
The connected phone number
Status
Current connection status (Online, Creating, Offline)
Text Agent
The Text Agent linked to this line (if any)
Voice Agent
The Voice Agent linked to this line (if any)
Creation Date
When the line was first connected
Your Voice Agent will start handling WhatsApp calls automatically once the status shows Online and the line has been activated for voice by Meta. It may take some time after the initial text message activity.
Troubleshooting
Meta popup is blocked
Allow pop-ups for app.dapta.ai in your browser settings and try again
Phone number already registered
Deregister the number from your existing WhatsApp account first
Verification code not received
Click Resend Code and check that you have signal on the phone number
Connection stuck on "Creating"
Wait a few minutes — the registration can take up to 60 seconds. If it persists, try disconnecting and reconnecting
Voice calls not working
Ensure the line has had sufficient text message activity first. Meta requires text messages before enabling voice calls
Meta requires business verification
Make sure your Meta Business Account has a valid website or Instagram Business profile URL configured
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