I m a web developer with 8 years of experience in C#, and I did many software to send and recieve sms.
I read your project details and I understood your needs ,I can do what you want it's easy to me to do your task in the deadline just contact me and we can discuss more about the project.
I am expert in website designing , it consist sms sending on mobile number functionality
I have develped one mobile app, name is AMPower, you can download it from google play store,