The WhatsApp Business Calling API is Meta's official voice extension to the WhatsApp Business Platform. It allows businesses to make and receive voice calls inside the same WhatsApp thread customers already use to message, with no separate phone line, no app switching, and no carrier charges on incoming calls.
Wati is one of the official Business Solution Providers (BSPs) authorized by Meta to bring the WhatsApp Business Calling API to your team. Once your verified WhatsApp number is connected, your customers can tap the call icon in WhatsApp to reach you, and you can call them back with consent, using your verified business name and badge on display.
Messaging is fast, but voice closes. The WhatsApp Business Calling API gives you both without forcing customers off WhatsApp, into a phone tree, or onto an unknown number they will not answer. The result: more trust, fewer drop-offs, and a measurable lift across sales and support.
Higher revenue from
voice calls than web
leads
Consumers want to
seamlessly switch
between messaging
and calling
Faster conversion
through calls
Higher retention
among callers
Every feature your team needs to run inbound and outbound voice on the WhatsApp Business Calling API - managed from a single Wati dashboard.
Sign in to Wati and connect your verified WhatsApp Business number. If you are already a Wati customer, you are using this number for messaging today — no need for a new one.
Inside Settings, switch on the WhatsApp Business Calling API. The toggle activates both inbound calling (your customers can call you) and outbound calling (you can call them after consent).
Set up your interactive call permission templates (used for outbound consent) and define your business hours so calls only land during the times your team is staffed.
Calls now flow into your existing Wati team inbox alongside chat history. Assign agents, track call logs and analytics, and start measuring impact from day one.
Eligibility: You need a verified WhatsApp Business account on the WhatsApp Business Platform (most Wati customers already qualify). Outbound calling is available in most countries; check the country availability section below for restrictions.
Meta charges per outbound minute, based on the destination country. Incoming calls are free for everyone.
Four ways teams are already winning with voice on WhatsApp.








The WhatsApp Business Calling API is live in most countries where the WhatsApp Business Platform is supported. Restrictions vary depending on whether the call is initiated by your customer (incoming) or by your business (outgoing). Meta updates this list regularly — Wati syncs availability with Meta's official documentation in real time.
Available in every country where the WhatsApp Business API is supported. The only exclusions are sanctioned regions: Cuba, Iran, North Korea, Syria, and parts of Ukraine.
Available in most supported countries — including India, Brazil, Mexico, Indonesia, the UK, and most of Europe, LATAM, MENA, and APAC. Outgoing calls are not currently supported from numbers in the USA, Canada, Egypt, Vietnam, and Nigeria, plus the sanctioned regions above.
Meta updates this list regularly. Talk to our team to confirm availability for your specific region.
Let customers connect instantly through trusted WhatsApp voice calls — build trust, close faster, and resolve issues quicker.