Mobile-Based SMS Gateway Application Using Cloud Computing Services

Short Messaging Service, or SMS, is a communications service still in use today. Despite more advanced text-based communication technologies like chatting apps (e.g., WhatsApp, Line, Telegram) or social media apps, SMS remains essential for various purposes, such as account verification (OTP), emergencies, or advertising. An SMS gateway service is a technology that can handle its implementation related to sending SMS. However, the cost of such services using third-party SMS providers is relatively high because they use international rates. So, only large-scale companies can afford them. There is a cheaper solution, which is to build an SMS gateway independently. There is a cheaper solution, such as building an SMS gateway independently. However, there are difficulties in building our SMS gateways due to the limited availability of devices necessary for any implementation. This study created a mobile-based SMS gateway application using a low-cost smartphone, allowing any person or company to implement it at an affordable price. Test results show that the application can send an entire SMS without failure, with an average SMS delivery time of 5,999.28 milliseconds, or around six seconds. These results are similar to those of other third-party SMS services, so it can be a cheaper solution for implementing SMS services.