Conversation "Visualization": AI Call Memo Service

DolphinAI, K.K. (Headquarters: Toshima-ku, Tokyo, CEO: Masahiro Asakura) is pleased to announce that our company has recently developed a new feature called "AI Call Memo" in collaboration with Sanntsu Telecom Service Corporation (Headquarters: Toshima-ku, Tokyo, Representative: Yijie Zhuang) under its cloud PBX service Clocall, which is officially released on November 20, 2025. This feature is based on DolphinVoice's audio file transcription and real-time speech recognition services for call center telephone systems.

■ Overview of Cloud PBX Service "Clocall"

The cloud PBX service "Clocall PBX " developed by Sanntsu Telecom Service Corporation is a highly functional business phone service that allows incoming and outgoing calls using a fixed phone number on smartphones, PCs, and SIP phones. The amount of companies that have implemented it exceeds 6,000, and the number of operational lines is over 50,000, boasting one of the top usage scales in Japan. Its ability to flexibly accommodate everything from small starts to large-scale deployments has been highly evaluated by many corporations.

The newly developed service "AI Call Memo " in collaboration with DolphinAI, K.K. features an 8kHz speech recognition system that automatically transcribes the content of phone calls, while generative AI summarizes the key points in an easy-to-understand manner. This enables a smoother and more efficient handling of inquiries and review of business discussions over the phone than ever before.

■ Customer Value of "AI Call Memo"

With the AI call memo service that can be used in conjunction with the CloCall PBX, it automatically performs "Recording → Transcription → Summarization → TODOs Organization" of call content, achieving a new call experience of "No Missed Information & No Need for Note-taking."

■ Main Functions of "AI Call Memo"

Achieved with DolphinVoice's high-precision speech recognition & speaker diarization & LLM summarization technology.

• AI Call Memo: Service details page (Japanese Ver. only)

• Speech Recognition: Call Center High-Precision Speech Recognition Experience Page

---

■ About DolphinAI, K.K.

■ Company Overview

DolphinAI, K.K. is an AI company that focuses on the Japanese language as its core. It develops products and provides technical services in speech recognition, speech synthesis, and voice dialogue. Tailored for the Japanese market, the company has built a high-precision voice-interaction platform that serves sectors such as call centers, meetings, and education.

■ Service - DolphinVoice (Voice-Interactive AI SaaS Platform)

Official Website: https://dolphinvoice.ai/

• Key Features: ASR (Japanese, Mandarin, English, Mandarin-English mixed, Japanese-English mixed), TTS (Japanese, Mandarin, English)
  

• Usage: About 7,000 accumulated hours per day in call center and AI meeting minutes scenarios

■ Security Framework

• Achieved information security (ISO/IEC 27001) certification and SOC 2 Type 1 report. (Details ️)

• Robust infrastructure hosted in Japan-based data centers (AWS, etc.).

• Compliant with Japan's Act on the Protection of Personal Information (APPI) and global standards such as SSL encryption.

---

"AI Call Memo" of Clocall PBX

■ Corporate Information

Sanntsu Telecom Service Corporation
https://sanntsu.com/
Address: ONEST Minami-Otsuka Building 10F, 2-37-5 Minami-Otsuka, Toshima-ku, Tokyo, Japan

DolphinAI, K.K.
https://dolphin-ai.jp/
Address: Hareza Tower 20F, 1-18-1 Higashiikebukuro, Toshima-ku, Tokyo, Japan

■ Contact

【Company】　DolphinAI, K.K.
【Department】　Corporate Management Division – Customer Support
【Contact】　Ms. Asakawa
【Phone】　(+81)03-6161-7298
【Email】　voice.contact@dolphin-ai.jp
【Website】　https://dolphin-ai.jp/