Create your Call.io business account
- iOS 16+ and Android 10+
- Start with your business details and contact number
How Your Phone Assistant Works
Call.io answers the calls you can't, understands what the caller needs, and handles the conversation the way you set it. Every call lands in the app as a transcript with the details you need.
A CUSTOMER CALL
See How Call.io Handles a Customer Call
Your team is busy serving customers. Call.io picks up, understands what the caller needs, and takes the right next step without making them wait.
9:41
Assistant Dialogue
Esther Howard
+1 354 678 88 88
Live Call00:32
- Call.io
Willow & Stone, how can I help?
- Caller
Hi, I'd like to book a table for tomorrow evening.
- Call.io
Of course. How many people will it be for?
- Caller
Four. Is 8:00 PM available?
- Call.io
8:00 PM is open. Could I take your name?
How it knew what to do
Call.io uses the business information and call rules you provide to answer customers consistently.
"We take reservations every day from 12:00 to 22:00. For groups over 6, ask for a phone number."
- A customer called while your team was busy.I answered immediately and asked how I could help.
- They want to make a reservationI already know your hours and reservation rules.
- They want a table for tomorrow evening.I confirm the details while they are still on the line.
- So I handled the request for your businessYour team can review the call and summary afterward.
SETUP
How to Set Up Your AI Call Assistant
Get your business assistant ready in minutes. Keep your existing number and decide exactly how Call.io should handle customer calls.
Get a dedicated assistant number for your business
- Your assistant number is ready to receive customer calls as soon as setup is complete.
- Choose whether Call.io answers all calls or only the ones your team misses.
Teach Call.io how your business works
- Set the greeting and the assistant voice
- Add hours, location, services, prices, and business rules
Stay in control of every live customer call
- Monitor live calls when needed without interrupting the conversation.
- Step in, take over, or end the call whenever your team needs to.
Review every customer conversation
- See who called, what they asked, and how the conversation went.
- Read transcripts and summaries in seconds, without replaying the entire call.
Never let another customer call go unanswered
Set up your business assistant and start answering customer calls 24/7.
FAQ
No. You can keep your existing business number. Call.io gives your business a dedicated assistant number, and you can also forward unanswered calls from your current line whenever you want.
Yes. While the assistant is on a call your team can listen in without the caller hearing them, join the conversation, or end the call — all from the app.
Every caller is answered. The assistant is not a single line waiting its turn, so nobody is left on hold while another conversation finishes.
Yes. Tell the assistant your hours and the rules around them — group sizes, notice periods, what to ask for — and it collects the details on the call and passes them to your team.
From what you enter during setup: your hours, location, services, prices, and the call rules you write in your own words. Change any of them and the next call follows the new rule.
Yes. The questions your team answers all day — opening hours, address, parking, what you offer — are answered from your business information, consistently and in the caller's language.
Every call lands in the app as a transcript and a summary, so your team can catch up in seconds instead of replaying the recording.