[Reservation and Meeting Confirmation Directly from Phone Calls] Autonomous Phone AI Agent "SupaDen" Now Includes Scheduling Function in Standard Plan - General Availability Begins

Kaitaku Co., Ltd. (Headquarters: 19-6 Nakamachi, Shinjuku-ku, Tokyo / Representative Director: Tomonori Matsuki) is pleased to announce the general availability of its phone AI agent "SupaDen" with an automatic scheduling function integrated into its standard plan, utilizing calendar integration. This feature will be available starting March 19, 2026.

With the addition of this function, the standard plan will now be able to reference calendars in real-time during calls, both for incoming and outgoing calls, allowing for direct reservation and meeting confirmations without the need for transfers or callbacks. The AI will resolve inefficiencies such as "received a call but the person in charge was unavailable, requiring a callback" or "multiple calls needed just for scheduling appointments," all within a single call.

Background of the Release

"The phone connected, but the schedule couldn't be set" – Lingering Inefficiencies in the Field

While many tasks are becoming automated with the spread of AI and various tools, scheduling appointments initiated by phone still largely relies on human intervention.

・When a customer calls to make a reservation or request a meeting, a callback is necessary if the person in charge is unavailable.

・When attempting to schedule an appointment by calling out, the back-and-forth for scheduling can take a significant amount of time.

・Only a limited number of staff members can handle calls while checking the 담당자's calendar.

In response to these challenges, the previous standard plan of SupaDen offered automated handling of incoming and outgoing calls. With the addition of this new function, it is now possible to automate the entire process, from real-time calendar referencing during a call to confirming the schedule on the spot.

1. Functionality now available on all plans

The moment an outgoing call is completed, the call content is automatically posted to a designated Slack channel via a Webhook URL. This eliminates the need for staff to manually transcribe notes, allowing the entire team to grasp the response details in real-time.

3 Key Points of the Scheduling Function

・ Completion of Scheduling for Both Incoming and Outgoing Calls: Whether it's an incoming call from a customer or an outgoing call from the AI, natural scheduling occurs within the flow of the conversation, confirming reservations and appointments on the spot. The phrase "I'll check with the person in charge and call you back" will become obsolete.

・ Real-time Calendar Integration: The AI integrates with Outlook Calendar, referencing the availability of the person in charge in real-time to propose and book the optimal schedule without conflicts.

・ Low Implementation Barrier for Immediate Use: Existing features such as bulk calling via CSV upload, automatic saving of call records, and integration with Slack/Teams remain, with the added scheduling function.

Main Use Cases

[Use Case: Incoming Calls]

For inquiries from customers and business partners, the AI handles initial reception and confirms meeting/business meeting schedules on the spot. Even when the person in charge is unavailable or during peak hours, reservations can be secured without lost opportunities. Applicable to all industries that handle reservations and appointments, including healthcare, beauty, real estate, professional services, and SaaS customer success.

[Use Case: Outgoing Calls]

For follow-up calls to dormant customers and prospects, the AI handles the entire process from contact to schedule confirmation. This allows the person in charge to focus on high-intent appointments, thereby improving operational efficiency.

Case Study

Persol Innovation Co., Ltd. (Human Resources Services)

Challenge: Reducing man-hours and personnel costs for calls to promote interviews with job seekers. Implementation Effect: Automated completion from calling to confirming interview schedules through natural dialogue with AI voice and Outlook Calendar integration, significantly improving efficiency in interview setting operations. Reason for Selection: ...