Net Oxygen is a Swiss company that offers an SMS service specialized for business applications. It has a number of features, including the ability to track sent messages and delivery status in real time. The Net Oxygen SMS service is not confined to Switzerland; messages can be sent to subscribers worldwide. There are several methods of interfacing with Net Oxygen SMS programmatically, including RESTful, SOAP-based, and XML-RPC APIs. The entire website is provided in French.