Welcome to OnCallClerk
OnCallClerk is a 24/7 AI phone answering service. You configure a voice agent, assign it a phone number, and it starts taking calls, answering questions, capturing leads, booking appointments, and forwarding urgent calls to you, all without writing any code.
What it does
Your AI agent picks up every call instantly, day or night. It greets callers in a natural voice, handles routine inquiries using the knowledge you give it, captures contact details, and books appointments directly into your Google Calendar. Everything is logged: full transcripts, call outcomes, lead data, and analytics, all accessible from a single dashboard.
When a caller needs a real person, the agent transfers them to your forwarding number automatically.
How it works
- Sign up and choose a plan at oncallclerk.com
- Create an agent, pick a voice, write a greeting, and describe your business in a system prompt
- Assign a phone number, search our inventory or forward your existing number
- Go live, your agent starts answering calls immediately
The whole process takes about five minutes.
Who uses it
OnCallClerk is built for any business that receives phone calls and can't always answer them, real estate agents showing properties, restaurants during dinner rush, medical practices after hours, service businesses on job sites, e-commerce stores with global customers.
Next step
Head to the Quick Start Guide to set up your first agent.