REST Gateway platform allows users to send voice messages via HTTP or HTTP in a simple and fast way. It can also send more than 500 voice messages in a single request. To get access to your statistics and invoicing data you can enter the website http://www.nrsgateway.com with your user log-in.
This documentation describes the necessary parameters to use all possibilities to send voice messages following the REST specifications.
Both requests as REST API responses are in JSON format, making it very simple use of the API with any programming language.