Callum is an AI calendar assistant designed for teams using Google Calendar, aiming to supercharge your calendar. It handles multi-person meetings, shared availability, and real-world scheduling constraints, allowing you to schedule, reschedule, and manage meetings with natural language, eliminating back-and-forth emails and manual calendar admin. You can boost its knowledge by connecting CRM, ATS, CSM apps, and it is available on Web, iOS, Slack with ChatGPT coming soon.