We provide bulk SMS service for your existing application via API or Dashboard Panel. The marketting & transactional SMS are available for promotional or OTP kind of service. We provide support to various platforms with existing codebase for the popular frameworks.
We provide proxy based REST service with OAuth2.0 token service for callbacks.
We provide the laravel code for API Implementation of the API. Follow https://kalpvaig.github.io link more information
You can use excel sheet to send SMS to the clients.