Developed and integrated Telnyx Speech-to-Text and Text-to-Speech plugins into the livekit/agents repository, enabling real-time transcription and voice synthesis within LiveKit sessions. Focused on end-to-end API integration, asynchronous programming, and audio processing to ensure seamless plugin operation and robust session management. The work involved close collaboration with both Telnyx and internal teams to align with project milestones and deliver a feature-ready solution. Using Python as the primary language, the developer established the technical groundwork for future enhancements, prioritizing feature delivery and system stability while laying the foundation for broader adoption of real-time audio capabilities in LiveKit environments.