WhatsApp Calling API: Voice Conversations Without Leaving WhatsApp
The WhatsApp Business Calling API lets businesses place and receive voice calls inside WhatsApp — so a chat can escalate to a call in one tap, and a customer can call your business number over WhatsApp instead of a traditional PSTN line. It closes the gap between async chat and live voice in a single channel. InfiQ supports WhatsApp business calling as an official Meta Business Partner.
Why calling inside WhatsApp matters
Today's best support is WhatsApp-first (async, self-serve, cheap), but a minority of issues genuinely need a voice — a distressed customer, a complex dispute, a high-value sale. Traditionally that meant dropping out of chat to an IVR or phone system, losing context and adding friction. WhatsApp calling keeps voice in the same channel and the same context: the agent already sees the conversation history, the call is tied to the customer identity, and there's no separate telephony number to manage. It's the missing rung between chat and call centre — the high-touch escalation, without the channel switch.
How it works
The Calling API surfaces voice calling on your WhatsApp business number, initiated from a conversation or offered as an inbound option, with call events (initiated, answered, ended, duration) delivered via webhooks so you can log, route and analyse calls alongside chats in your shared inbox. Availability, eligibility and rollout follow Meta's platform terms; treat it as an escalation layer on top of your WhatsApp support, not a wholesale IVR replacement.
Are you eligible?
Voice calling on WhatsApp rolls out per Meta's platform terms. You'll typically need:
0 of 4 ready — tick the rest to confirm eligibility.
Set it up with InfiQ
InfiQ gets calling live on your WABA and wired into your shared inbox in five steps:
0 of 5 steps done
Turn on voice calling for your verified WhatsApp business number.
Decide when the Call option appears by setting your escalation triggers.
Send incoming calls to the correct agents or teams in the shared inbox.
Capture initiated, answered, ended and duration events plus summaries via webhooks.
Run a test call end to end, then switch it on for customers.
Use cases
High-value sales calls, complex support escalations, appointment and consult confirmations for healthcare and services, and dispute resolution all benefit from voice tied to the chat. In each case the call carries the full conversation history, so the agent never asks the customer to repeat themselves and every outcome is captured against the same customer record.
Where many CPaaS fall short
Voice-in-WhatsApp is new, and many providers haven't built calling into their inbox, routing and analytics. InfiQ treats a call as part of the same conversation record — routed, logged and measurable — not a bolt-on.
Frequently asked questions
Does this replace my call centre?+
Is it a normal phone call?+
Are calls logged?+
Who's eligible?+
Does InfiQ support it?+
Still have questions?
Ask on WhatsAppAdd voice to your WhatsApp support — check eligibility or book a demo.