Call Annotations provide valuable context and insights that drive actionable outcomes, contributing to the overall success of voice communication strategies by enabling training and coaching for contact center agents, compliance monitoring, call quality monitoring, marketing analytics, enhanced customer experience, customer intelligence, and attribution using machine learning. With Call Annotations, users can enrich Voice Insights Call Summary records with subjective contextual information, facilitating analysis and reporting, ensuring compliance, and improving customer experience. The tool allows customers to annotate calls anytime after the call initiates, providing a 30-day window for post-call annotation, and enables filtering of calls based on annotated values via the Voice Insights API.