> For the complete documentation index, see [llms.txt](https://help.sipgate.de/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.sipgate.de/cloud-telefonanlage/en/account-management/rufnummern-verwalten/wie-weise-ich-eine-durchwahl-zu.md).

# How do I assign an extension?

Here’s how to assign internal extensions to users and groups in sipgate for speed dial, presence display, and busy lamp field.

{% tabs %}
{% tab title="sipgate classic" %}
With an extension, all users in your account can reach each other without having to dial the full telephone number of the respective user. You also need extensions for your users if you want to use the presence display. For snom phones, you also need the extension to[ configure the busy lamp field.](https://help.sipgate.de/hc/de/articles/4403611171473/live_preview/01K6FVTRNS1EMQ5JJTDSBERDYM)

You can assign extensions if you are logged in as **admin** logged in. Users can have multiple internal extensions, however only one extension per routing.

**How to assign an extension to a user:**

First, open the **account management** and click the tile in the top left **User.** Now select the desired **user** from. **Edit** and then on **Add extension.** Then add the desired extension.

{% hint style="info" %}
Important: For **mobile phones** internal extensions should always **be three- and four-digit** numbers.
{% endhint %}

Click on **Save** and then in the overview on **Finish editing.**

**Assign extensions to groups**

To assign a phone number or an internal extension to a group, go to the [group overview](https://app.sipgate.com/groups) and select the desired group. In Visual Routing, you can add the desired extension via Edit routing.

**Account management → Groups → Select groups → Edit routing → Phone number** and **Add extension**
{% endtab %}

{% tab title="sipgate neo" %}
Extensions for individual lines can only be assigned by **Admins** of the account can be assigned. As an admin, go to the tile in Account management **user** and click the user for whom you want to assign an extension. In the user's personal routing, you will see the assigned phone number in the upper area and the button for assigning an extension to the right of it. Click the Extension button and enter the desired extension there. Please make sure that you assign each extension only once. With a click on **Save** the extension is assigned to the corresponding user.

Extensions can also be assigned to **shared channels** be assigned. To do this, go to the menu item **Channels** and select the desired channel. The extension is then assigned in the same way as for the personal channels of individual users.
{% endtab %}
{% endtabs %}

<details>

<summary><strong>The following digit sequences cannot be assigned for technical reasons:</strong></summary>

* 110 (police emergency number Germany)
* 111 (emergency number New Zealand)
* 112 (fire and rescue emergency number Germany)
* 113
* 114
* 115 (government information number Germany)
* 116
* 117
* 118
* 119
* 211
* 311
* 411
* 511 (USA hotline number)
* 611
* 711 (USA long-distance directory assistance)
* 811
* 911 (emergency number USA)
* 999 (emergency number UK)
* 9900-9999

</details>

All users in the account can reach each other via the extension. Note that extensions must be terminated with \* on mobile phones and must be at least two digits long in order to be dialed. So if you want to reach extension 10 from a mobile phone, for example, dial 10\* to call the line. Single-digit variants such as \*1 cannot be dialed from the mobile network.


---

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