Worked on enhancing the pion/webrtc repository by developing a robust error handling mechanism for SDP unmarshalling. Focused on improving the clarity of error reporting during SDP parse failures, the implementation introduced a dedicated error type, ErrSDPUnmarshal, to provide more informative feedback for debugging and user support. Comprehensive tests were added to validate error signaling throughout the SDP parsing process, ensuring greater reliability and maintainability. The work was carried out using Go, with particular attention to error handling patterns and testing best practices. This feature improved the overall robustness of WebRTC signaling by making error scenarios more transparent and actionable.