The article provides a detailed examination of the technologies used in an innovative service that implements voice and text chats as a web application, using an already implemented solution as an example. The main focus is on analyzing the architectural and technological solutions employed in the development of innovative web applications for voice and text chats. The article extensively discusses the functional capabilities, scalability of such systems. The service, provisionally named “Voice and Text Chat Service in the Context of Import Substitution”, serves as the object of analysis. Despite its functional similarities and user experience with leading communication platforms such as Discord, Telegram, and VKontakte, it is developed with specific requirements and the latest technologies in web development in mind. The article meticulously reviews the key components of the system, including server logic, client applications, and data infrastructure. Special attention is given to the integration of modern technologies into real products, including the use of cloud services, microservices architecture, and contemporary frameworks and protocols. The analysis covers not only technical aspects but also issues of usability, accessibility, and inclusivity, enabling the creation of more effective services that meet user needs. The article also highlights potential directions for further development of such platforms and presents examples of best practices in this field.