WhatsApp messaging
SignalWire’s WhatsApp integration lets you send and receive WhatsApp messages from a Meta-verified business number using the same platform, APIs, and routing you already use for SMS, MMS, and voice. Inbound and outbound messages are handled through the same Messaging API, so WhatsApp becomes one more channel alongside the ones you already run, with no third-party middleware required.
The same business number can also take WhatsApp calls.
How it works
Customers reach your business through WhatsApp Ads or a Facebook call-to-action button, which opens WhatsApp and starts a conversation with your Meta-verified business number. From there, messages are handled programmatically like any other channel, with the Server SDKs, SWML, or AI Agents.
Prerequisites
To use WhatsApp messaging, you need a Meta Business Account.