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

# Easybell SIP Setup

> Connect Easybell numbers and SIP forwarding to itellicoAI

Use this guide when your existing DACH phone numbers already run through Easybell.

<Steps>
  <Step title="Enable FQDN authentication">
    Easybell requires their [FQDN authentication feature](https://www.easybell.de/hilfe/fragen/fragen-zum-telefonanschluss/antwort/sip-trunk-authentifizierung-per-fqdn-domain-einrichten/) to point a SIP Trunk at an external host like itellicoAI. It is included on Cloud Telefonanlage Pro and on volume SIP Trunk tariffs; on other tariffs it is a paid add-on. Activate it in the Easybell customer portal or via Easybell support before continuing.
  </Step>

  <Step title="Configure the Easybell SIP trunk">
    1. Log in to your [Easybell](https://www.easybell.de) customer portal
    2. Open your SIP trunk settings
    3. Under authentication, select **FQDN Domain** and enter `50ebbp4vhpr.eu.sip.livekit.cloud`
    4. Use **TCP** or **TLS** as the transport protocol
    5. Set the inbound number format to **E.164 with leading +**
    6. Note the SIP registrar, username, and password for the itellicoAI side
  </Step>

  <Step title="Create SIP Trunk in itellicoAI">
    Go to **Telephony → SIP Trunks → Create SIP Trunk**:

    * **Name:** Easybell
    * **Termination URI:** Easybell's SIP registrar address
    * **SIP Auth Username/Password:** Your Easybell SIP credentials
  </Step>

  <Step title="Configure routing">
    In Easybell, configure call forwarding to route inbound calls to the itellicoAI SIP endpoint (`sip:50ebbp4vhpr.eu.sip.livekit.cloud`).
  </Step>
</Steps>