# Limit the number of authorizations per SIP account

1. Go to edit the employee account.

<figure><img src="https://835495363-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FsZ8acWnNlSalIHQjMFu1%2Fuploads%2Fn95NJ6gpkOCX0Oc4lHPk%2FextensionsSection.png?alt=media&#x26;token=d645b600-e256-415d-88fe-ce44beb30d2f" alt=""><figcaption><p>Editing an employee's account</p></figcaption></figure>

2. In the "**Extra oprions**" field, add:

```
[aor]
max_contacts = 1
```

<figure><img src="https://835495363-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FsZ8acWnNlSalIHQjMFu1%2Fuploads%2FxQenfGFgPtNBeptPEw47%2FextraOptions.png?alt=media&#x26;token=4484feff-27ef-4bd8-8e68-f824be483b26" alt=""><figcaption><p>Additional parameters in the employee account</p></figcaption></figure>

{% hint style="success" %}
The last registration will work. The softphone/phone that registered last and will receive calls. Outgoing calls can be made by each end device.
{% endhint %}