Fix Python DLT SMPP Integration

I have a working SMPP client in Python, but ever since our traffic moved to India’s DLT region the messages never leave the bind. The vendor confirms that “DLT parameters are not added,” so nothing is accepted and no delivery receipts arrive... (Budget: ₹600 - ₹1500 INR, Jobs: API Integration, Debugging, Linux, PHP, Python, Software Architecture, Software Development, Software Engineering, Software Testing, Technical Documentation)