The client needed a web application that would allow for bulk SMS messaging. The goal was to create a system where users could easily select individuals or groups to whom they wanted to send SMS messages, write the message, and send it.
We developed a web application that enables users to log in using Windows Single Sign-On (SSO) and then send SMS messages through a simple interface. Users can select recipients either individually or as an entire group. After entering the message text, the SMS is sent via a connected hardware SMS gateway located within the local network. This gateway contains a SIM card and allows message delivery through a defined API, which we integrated into the application. Thanks to SSO, users log in automatically with their account without having to enter a password.
The web interface was designed to be clear and user-friendly. After sending the message, the system displays a confirmation of successful delivery, and users have the option to browse the history of sent SMS. The entire solution is fully web-based and runs on the Nette framework with an SQL database for storing contacts and records of sent messages.
