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

# Phone & SMS System

> Native VoIP and SMS, without leaving the record you’re on.

Custral's native Phone and SMS system eliminates the need for external telephony tools. It provides a unified interface for calling, texting, and managing numbers directly within your workspace.

## Number Marketplace

Procure phone numbers from around the world directly within Custral.

* **Search by Area Code**: Find numbers in specific regions to build local presence.
* **Instant Provisioning**: Numbers are ready for use immediately after purchase.
* **Verified Caller IDs**: Use your existing business numbers for outbound calls by verifying them through Custral.

## Sending Pools

Manage how your organization uses phone numbers with **Pools**.

* **Team Assignment**: Assign a pool of numbers to a specific team (e.g., Sales North America).
* **User Assignment**: Give individual users their own dedicated lines.
* **Round-Robin**: Automatically rotate through numbers in a pool for outbound campaigns.

## Dialer Widget

The Dialer widget provides a persistent interface for all voice interactions.

### Key Features

* **One-Click Dialing**: Start a call by clicking any phone number property.
* **Inbound Pop-ups**: Instant caller ID and record matching for incoming calls.
* **Live Transcripts**: AI-powered real-time transcription of your conversations.
* **Warm Transfer**: Pass live calls to teammates with full context.

## SMS Capabilities

Text messaging is natively integrated into the [Conversation Timeline](/data/conversations/overview).

* **Two-way SMS**: Send and receive texts directly from a contact record.
* **Automated SMS**: Use [Workflow Actions](/automation/workflows/actions) to send texts based on triggers.
* **SMS Sequences**: Enroll contacts in multi-day SMS nurturing campaigns.

## Billing & Credits

All phone-related costs, including number procurement, monthly fees, and usage (minutes/segments): are deducted from your organization's **Custral Credits**.

<Info>See the [Billing & Credits](/start/custral/billing) guide for more details on usage rates.</Info>

## AI practice calls

Custral includes a set of practice phone numbers. Calling one of them from the dialer connects you to an AI role-play partner instead of placing a real call, so you can rehearse a pitch or try out the dialer, live transcription, and call analysis without dialing a real person or spending credits.

### Why use them

* Practice sales calls and objection handling against a realistic, responsive prospect.
* Try the dialer, live transcripts, and post-call analysis end to end before going live.
* Onboard new reps safely, no real customers on the other end.

### How it works

Dial one of the practice numbers below and the AI answers in character. Each number plays a different persona and scenario, so you can pick the kind of call you want to rehearse. Speak naturally. Your words are transcribed live and the AI responds in real time, just like a real call.

### Practice numbers

| Number         | Scenario         | Who answers                                                         |
| -------------- | ---------------- | ------------------------------------------------------------------- |
| `+11234567890` | Demo, takes it   | Friendly prospect who wants a demo.                                 |
| `+11234567891` | Demo, declines   | Skeptical prospect who refuses the demo.                            |
| `+11234567892` | Support call     | Frustrated customer with a technical issue.                         |
| `+11234567893` | Fast close       | Decisive CEO who buys quickly if the value is clear.                |
| `+11234567894` | Long sale        | Analytical director who asks many technical and security questions. |
| `+11234567895` | Gatekeeper       | Executive assistant who tries to screen and deflect the call.       |
| `+11234567896` | Heavy objections | Manager with many reasons they don't need the tool.                 |

### Limits

* **Daily limit**: up to 50 practice calls per workspace per day.
* **Maximum length**: each practice call ends automatically after 10 minutes.
* **Never a real call**: practice calls never reach the real phone network.


## Related topics

- [Phone & SMS Numbers](/comms/voice/numbers.md)
- [Phone & SMS Settings](/blocks/embedded/phone/settings.md)
- [Phone](/data/properties/text/phone.md)
- [SMS](/comms/sms/overview.md)
- [SMS Overview](/blocks/embedded/phone/sms-overview.md)