> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lindy.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Phone Calls

<div style={{ display: 'flex', justifyContent: 'center', margin: '2rem 0' }}>
  <div className="video-card">
    <video src="https://lindy-docs-content.nyc3.digitaloceanspaces.com/Phone%20Calls.mp4" width="600" autoPlay muted loop playsInline style={{ display: 'block', width: '100%', borderRadius: '16px' }} />
  </div>
</div>

## Quick Overview

Lindy Phone Calls enables AI-powered voice automation for both inbound and outbound calls. Build agents that can handle customer support, sales outreach, appointment booking, and more — all with natural conversation abilities.

Key capabilities:

* **Inbound & outbound** - Receive calls with triggers, make calls with actions
* **30+ languages** - Support for global communication
* **Natural voices** - Human-like conversation flow
* **Call transfers** - Route to humans or other agents
* **Concurrent calls** - Handle multiple calls simultaneously
* **100+ countries** - Global reach with competitive pricing

Want to learn more about how to use Lindy Phone or see example prompts? Check out our [Lindy Phone guide](/skills/by-lindy/lindy-phone) for detailed setup instructions and practical examples.

<Note>
  Phone calls are available on Pro, Business, and Enterprise plans. Pro plans are limited to 30 calls/month, English only, and one call at a time. Business and Enterprise plans offer unlimited concurrent calls and support all languages.
</Note>

## Types of Voice Agents

### Inbound Call Handling

Uses the "Call Received" trigger to answer incoming calls automatically.

**Best for:**

* Customer support automation
* Booking and scheduling
* Lead qualification
* After-hours answering

**Available actions:**

* End call
* Transfer call
* Press numbers (phone tree navigation)

### Outbound Call Campaigns

Uses the "Make Phone Call" action to initiate calls.

**Best for:**

* Sales outreach
* Appointment reminders
* Survey collection
* Follow-up campaigns

<Tip>
  We recommend using Gemini Flash for simple phone actions or simple phone calls, and Claude Sonnet for more advanced phone behavior. These recommendations may change as new models emerge.
</Tip>

## Setting Up Phone Numbers

### Purchasing a Number

<Frame>
  <img src="https://mintcdn.com/lindyai/QWdJNkViLsD1veyH/lindy-brand-assets/phone-purchase-number-dropdown.png?fit=max&auto=format&n=QWdJNkViLsD1veyH&q=85&s=766a3f2353ec926ed4b3c7a442b917f6" alt="IMAGE NEEDED: Screenshot of Phone number dropdown showing available numbers to purchase" width="1410" height="1192" data-path="lindy-brand-assets/phone-purchase-number-dropdown.png" />
</Frame>

1. Add a **Call Received** trigger or **Make Phone Call** action
2. Click the "Phone number from" field
3. Select from available numbers or search for specific area codes
4. Each number costs \$10/month

### Managing Phone Numbers

Access your numbers through Settings:

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  <div className="video-card">
    <video src="https://mintcdn.com/lindyai/QWdJNkViLsD1veyH/lindy-brand-assets/phone-settings-management.mp4?fit=max&auto=format&n=QWdJNkViLsD1veyH&q=85&s=ab1c851f144fbb3b4f70405d1ae26d6b" width="600" autoPlay muted loop playsInline style={{ display: 'block', width: '100%', borderRadius: '16px' }} data-path="lindy-brand-assets/phone-settings-management.mp4" />
  </div>
</div>

1. Click your user icon
2. Select **Settings**
3. Navigate to **Phone Numbers**
4. Options: Disconnect or Release numbers

## Language Configuration

Lindy supports over 30 languages for natural conversation:

**Popular languages:**

* English, Spanish, French, German
* Chinese (Mandarin/Cantonese)
* Japanese, Korean
* Hindi, Arabic
* And 25+ more

<div style={{ display: 'flex', justifyContent: 'center', margin: '2rem 0' }}>
  <div className="video-card">
    <video src="https://mintcdn.com/lindyai/QWdJNkViLsD1veyH/lindy-brand-assets/phone-language-dropdown.mp4?fit=max&auto=format&n=QWdJNkViLsD1veyH&q=85&s=8da1f5ccdce7934c9793510a678b2bbc" width="600" autoPlay muted loop playsInline style={{ display: 'block', width: '100%', borderRadius: '16px' }} data-path="lindy-brand-assets/phone-language-dropdown.mp4" />
  </div>
</div>

To configure:

1. Open your phone trigger or action
2. Find the "Language" dropdown
3. Select your desired language

## Call Transfer

Enable your agents to transfer calls to humans or other departments when needed.

### As a Workflow Step

<Frame>
  <img src="https://mintcdn.com/lindyai/QWdJNkViLsD1veyH/lindy-brand-assets/phone-transfer-action-step.png?fit=max&auto=format&n=QWdJNkViLsD1veyH&q=85&s=342faca3532f09307ea72f8743f5ba65" alt="IMAGE NEEDED: Screenshot showing Transfer Call action being added after Call Received trigger" width="2090" height="1322" data-path="lindy-brand-assets/phone-transfer-action-step.png" />
</Frame>

1. Select **Lindy Phone** → **Transfer Call**
2. Set "To" field to destination number

### As an Agent Skill

<Frame>
  <img src="https://mintcdn.com/lindyai/QWdJNkViLsD1veyH/lindy-brand-assets/phone-transfer-agent-skill.png?fit=max&auto=format&n=QWdJNkViLsD1veyH&q=85&s=30b0e14109b23f9ea4c18ed68780dd1b" alt="IMAGE NEEDED: Screenshot of AI Agent with Transfer Call added as a skill" width="2030" height="1730" data-path="lindy-brand-assets/phone-transfer-agent-skill.png" />
</Frame>

Add transfer capability to AI agents:

1. In your agent prompt, include transfer instructions:
   ```
   If the customer asks for a human or you determine transfer is needed, 
   transfer to: +1-555-0123
   ```
2. Add **Transfer Call** as an agent skill
3. Agent will intelligently decide when to transfer

<Tip>
  Add conditions before transfers to route calls based on area code, time of day, or conversation content.
</Tip>

## Pricing Structure

### Phone Number Costs

* **\$10/month** per number
* Supports concurrent calls
* Available in 100+ countries

### Per-Minute Rates

Standard US configuration: 20 credits/minute (approximately \$0.19/min)

<AccordionGroup>
  <Accordion title="Major Markets">
    * **US & Canada**: 20 credits/min
    * **UK Landline**: 20 credits/min
    * **Australia Landline**: 20 credits/min
    * **Germany Landline**: 20 credits/min
    * **France Landline**: 20 credits/min
  </Accordion>

  <Accordion title="Mobile Rates">
    * **US Mobile**: 20 credits/min
    * **UK Mobile**: 21 credits/min
    * **Australia Mobile**: 26 credits/min
    * **Germany Mobile**: 53 credits/min
    * **France Mobile**: 34 credits/min
  </Accordion>

  <Accordion title="International">
    View full pricing for 100+ countries in Settings → Phone Numbers → Pricing
  </Accordion>
</AccordionGroup>

<Note>
  Forwarded calls stop charging for LLM usage once connected to a human.
</Note>

## Best Practices

* **Test thoroughly** - Always test with real calls before going live
* **Clear prompts** - Provide specific instructions for conversation flow
* **Fallback options** - Include transfer options for complex requests
* **Monitor performance** - Review call logs and adjust prompts
* **Set expectations** - Let callers know they're speaking with AI when appropriate

## Next Steps

Enhance your phone agents with these advanced features:

<CardGroup cols={2}>
  <Card title="Lindy Phone Guide" href="/skills/by-lindy/lindy-phone" icon="phone">
    Detailed examples and advanced phone setup
  </Card>

  <Card title="Conditions" href="/fundamentals/lindy-101/conditions" icon="network-wired">
    Route calls based on caller data or time
  </Card>

  <Card title="Agent Steps" href="/fundamentals/lindy-101/ai-agents" icon="brain-circuit">
    Build complex conversational flows
  </Card>

  <Card title="Voice Support" href="/use-cases/customer success/voice-support" icon="headset">
    Build AI-powered customer support phone agents
  </Card>
</CardGroup>