> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kalimna.ai/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 Kalimna.ai: dedicated numbers, SIP integration, and Caller ID

Kalimna.ai lets you connect three different kinds of phone numbers to your AI assistant:

1. **Normal (Dedicated) Numbers**
   * Rented directly from Kalimna.ai.
   * 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 Kalimna.ai'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.

## Choosing the Right Option

* If you need **inbound** and you don't already have a VOIP solution, consider renting a dedicated number.
* If you have an established **PBX** or VOIP provider, use **SIP integration**.
* If you just want to do **outbound** calls showing your existing phone line, pick **Caller ID**.