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

# Types of Phone Numbers

> Learn about the different types of phone numbers you can use with Famulor.io: dedicated numbers, SIP integration, and Caller ID

Famulor lets you connect three different kinds of phone numbers to your AI assistant:

1. **Normal (Dedicated) Numbers**

   * Rented directly from Famulor.io.
   * Can be used for **both inbound** and **outbound** calls.
   * Typically charged as a monthly rental, with the ability to handle multiple parallel calls on a single number.

2. **SIP Integration (VOIP/PBX)**

   * Connect an existing VOIP or PBX number via SIP.
   * This setup allows you to keep your existing numbers while benefiting from Famulor.io's AI.
   * Works for **both inbound and outbound**—but requires you to share SIP credentials or trunk details with us to configure.
   * To submit a request, contact us through the chat widget in the bottom right corner of the screen inside the app.

3. **Caller ID (Outbound Only)**
   * When you already have a phone number (e.g., your personal or business line) but don't want to port it or integrate via SIP.
   * You verify ownership (via OTP or a short call) so that number can appear on people's caller ID.
   * **Inbound calls won't be answered by the AI** if you use Caller ID alone—it only masks the AI's outbound calls.

## Comparison Table

| Feature              | Dedicated Number                  | SIP Integration                   | Caller ID                      |
| -------------------- | --------------------------------- | --------------------------------- | ------------------------------ |
| **Inbound Calls**    | ✅ Supported                       | ✅ Supported                       | ❌ Not supported                |
| **Outbound Calls**   | ✅ Supported                       | ✅ Supported                       | ✅ Supported                    |
| **Monthly Rental**   | Required (varies by region)       | Not required                      | Not required                   |
| **Setup Complexity** | Easy - rent and assign            | Medium - requires SIP credentials | Easy - verify ownership        |
| **Voice Quality**    | High (direct carrier connection)  | Depends on SIP provider           | High (uses your existing line) |
| **Parallel Calls**   | Multiple calls per number         | Depends on SIP trunk capacity     | Limited by your line           |
| **Best For**         | New setups, both inbound/outbound | Existing PBX/VOIP systems         | Outbound-only campaigns        |

## Choosing the Right Option

* **Need inbound calls?** Choose a **Dedicated Number** if you don't have VOIP, or **SIP Integration** if you have an existing PBX/VOIP system.
* **Only outbound calls?** Use **Caller ID** to verify your existing number, or rent a **Dedicated Number** for better analytics.
* **Have existing infrastructure?** **SIP Integration** lets you keep your current numbers while adding AI capabilities.

<Tip>
  Related pages: [Purchasing And Managing](/en/phone-numbers/purchasing-and-managing), and [Assigning To Assistants](/en/phone-numbers/assigning-to-assistants).
</Tip>