Two-Way SMSC Gateway Development

I need a production-ready SMSC gateway that supports full two-way SMS communication. Incoming and outgoing traffic must flow through my existing phone system, so the solution has to plug into that infrastructure cleanly—SMPP, HTTP API, or any proven method you are comfortable with, as long as the end result is stable and easy for my team to operate.

Because this ties directly into live telephony, speed matters: I would like to see an initial working build, integrated and testable, as soon as possible. Clear, step-by-step deployment notes and any source code are expected so we can maintain the service internally after hand-over.

Deliverables
• A fully functional SMSC gateway enabling send/receive messaging
• Seamless integration with the current phone system (details provided once project starts)
• Basic monitoring/logging so we can track delivery and inbound traffic
• Short hand-over document covering setup, configuration, and everyday operation

If you have recent experience building similar gateways or integrating with telephony platforms, please outline that along with the tools or frameworks you plan to use. I’m ready to move quickly once I find the right fit.