Python Dialer Upgrade with MS Teams

I have developed a Python-based dialer that currently works as follows: I provide an Excel file containing phone numbers. I upload an audio file. When the script runs, it uses Microsoft Teams to start calling each number one by one, and plays the audio as a voicemail. Now, I need some upgrades and improvements in this dialer: Better automation and error handling. Smooth integration with Excel data input. More flexibility with audio playback. Any performance optimizations or best practices you can suggest. Requirement: Strong experience in Python automation. Experience with Microsoft Teams automation (preferred). Ability to deliver the upgrade quickly.

Project ID: 39750633