Stay available during busy periods
Call0 can handle separate conversations up to the concurrency included in your plan, so callers do not all reach the same queue.
Solution · Appointment booking
Book appointments while your team keeps moving.
Call0 captures appointment requests by phone, checks suitable times when a calendar is connected and confirms the agreed next step.
For your workflow
- Answer calls using only your approved knowledge
- Capture complete details in a consistent structure
- Hand off or create a callback according to your rules
Incoming appointment request
Call0 · call in progress
"Do you have anything available on Thursday afternoon?"
Call0 checks the configured booking rules and offers an eligible time or records a callback request.
Request captured · next step confirmed
24/7
available according to your rules
Your own number
or forward existing calls
Knowledge base
approve answers with control
Transcript
keep every conversation traceable
Why Call0
Less phone chaos. More clear next steps.
Use knowledge, not a rigid script
The assistant works from the information and boundaries you approve for this workflow.
Keep every handoff useful
Complex requests reach the right person with a concise summary and the caller details already attached.
Capabilities
A conversation that fits your workflow.
You define the knowledge, required fields, responsibilities and boundaries. Call0 applies that structure during the conversation.
Understand the request
Identify the topic, urgency and intended next step in natural conversation.
Answer approved questions
Use your knowledge base for opening hours, processes and other approved information.
Capture required details
Collect names, contact details and workflow-specific fields during the call.
Route or schedule a callback
Transfer the call or create a clear follow-up task when your rules require it.
Document the conversation
Make the transcript, summary and captured outcome available to your team.
Connect your systems
Send structured results to supported integrations, webhooks or the 0API.
Phone number & forwardingCalendarKnowledge baseWebhooks & 0API
Setup
From workflow design to the first test call.
Start small, test the most important scenarios and go live only when answers and handoffs work as intended.
- 01
Define the role and boundaries
Choose tone, responsibilities, escalation paths and the topics Call0 must not answer.
- 02
Add approved knowledge
Provide the recurring questions, processes and wording the assistant may use.
- 03
Test realistic conversations
Run normal, ambiguous and urgent scenarios before connecting real callers.
- 04
Connect your phone workflow
Use a Call0 number or forward existing calls according to your preferred setup.
FAQ
Frequently asked questions.
Your exact setup depends on telephony, workflows and the integrations you want to use.
What can Call0 handle for Appointment booking?
Call0 handles the questions and steps for which you provide approved knowledge or clear rules. If a reliable answer is missing, it can capture a callback request or hand off according to your setup.
Can a conversation be handed to my team?
Yes. You define the topics, hours, urgency levels and other conditions that trigger a transfer or a structured callback task.
Can I review what happened on the call?
Depending on your settings, the dashboard provides the transcript, summary and captured outcome so your team can continue with context.
Keep exploring
More relevant pages
Reception & secretarial support
Call0 welcomes callers, identifies what they need and routes messages, questions and callback requests according to your front-desk rules.
Learn moreAI answering service
Call0 asks the right follow-up questions, records complete callback details and provides approved information instead of collecting an unstructured voice message.
Learn moreOutbound
Call0 runs approved callbacks, reminders and defined follow-up workflows according to your conversation rules and documents every outcome.
Learn moreHear how Call0 can handle your workflow.
Start with a browser test, or discuss your phone number, knowledge and integrations in a personal demo.