WhatsApp Business is a service for having a dialogue with customers using the WhatsApp messaging service. It can be used to send messages to customers and for responding to customer-initiated conversations over WhatsApp. The service is provided by WhatsApp and other providers, and is accessible using an API or portal service.
Melrose LabsTyr SMS Gateway
Melrose Labs: We deliver innovative services in cloud communications across mobile, fixed-line, satellite and internet. Our services increase the success of businesses and other organisations through better communication with their staff and customers.