WhatConverts is a call tracking software that integrates with various marketing channels to help businesses determine which campaigns are effective. The platform prioritizes and manages leads, including phone call leads with transcription capabilities. By leveraging AssemblyAI's Speech-to-Text API, WhatConverts has significantly improved its call transcription accuracy, leading to more reliable lead ranking and enhanced security through PII (PCI) Redaction. This collaboration benefits both companies in providing accurate marketing data for businesses to make informed decisions.