About Callva
Solving business phone answering with AI technology
Callva turns phone response, handoff, records, and improvement into one response-to-improvement cycle, backed by 60,000+ real calls across multiple industries. We build business phone operations as a product, including external system integrations and a 99.995% continuity standard.
60,000+
Real calls handled
Operational data from real customers, not scripted demos
Multi-sector
Industry response guides
Different tones and rules across clinics, beauty, restaurants, and professional services
Integrated
External systems
Reservation, CRM, notification, and operation tools connected into call flows
99.995%
Continuity standard
Designed for uninterrupted connection, handoff, records, and access control
Live operations
Call operations console
99.995%
continuity target
Technology
Call AI Proven in Real Operations
60,000+ real calls, response guides for multiple industries, external system integrations, and a 99.995% continuity standard in one operating system.
60,000+ real-call dataset
Applies call patterns from healthcare, beauty, restaurants, professional services, and more to response standards
Apply call insights to the next response
Reviews calls, improves manuals and prompts, and feeds those learnings back into the next response
99.995% continuity standard
Designed to keep call connection, human handoff, records, and access control running without interruption
response-to-improvement cycle
Every call makes the operating standard stronger
Callva is not an answering machine that stops after a response. It reviews previous calls, improves manuals and prompts, and feeds those improvements back into the next conversation.
Operational reliability standards
Team
Meet the Team
Junyoung Park
Founder & CEO
Storyweaver Co., Ltd.
Callva - AI phone operations product proven by 60,000+ real calls
Naver
Security Engineer
Dcircle
CTO
Korea University
Embedded Security Lab
Best Paper Award
Voice Security Research
Conversation is the most intuitive form of communication for all living beings. And the phone is the tool we've been most comfortable using.
I want to connect the most familiar tool with the most cutting-edge AI to build a people-first service.
Drawing on AI Agent product experience at Team Attention and voice-security research, we are building real business phone operations into a system that improves every day.