Automate your outbound and inbound calls,
and run a 24/7 call center, 365 days a year, from just 20,000 KRW a month.
Want to automate repetitive outbound and inbound calls?
From building and testing to deployment and monitoring —
run a fully customized AI call center.
A voice agent you can freely build and edit anytime — no developers required.
Instantly test by voice whether the agent handles the tasks you've configured.
Connect the agent to a 070 or 1533 business number and start running your call center.
Monitor call recordings, transcripts, and live calls in real time.
A high-value AI call center service
Call in yourself and hear the AI voice firsthand.
Restaurant reservation demo — call the number below and the AI will answer.
Pick a language and industry in a new tab, and a phone number is issued instantly.
LEAN CALL's AI is already making and taking calls.
Marketing calls to drive engagement, surveys to gather feedback — automate high-volume outbound calls.
An inbound customer support AI for handling flight inquiries within an app — available around the clock.
Satisfaction check-in calls — measure and manage customer satisfaction with consistent quality every time.
An AI agent that handles tasks just like a human.
More than scripted replies — conversations that understand the customer's emotions and context. From a warm greeting to empathetic reactions and natural conversational flow, it talks like a person, not a machine.
Upload your website, documents, and image files to train the AI.
Call data and dashboards let you monitor every single call.
Get a new number issued, or use your existing one to run your AI call center.
Billed based on your call usage.
Stakeholder interviews and scenario analysis
Design the AI conversation flow and set up the environment
Live call testing with a small sample group
Kickoff meeting and assessment of current inbound call operations
Build the knowledge base and design API integrations
Pilot operation with self-learning system applied