---
title: "Configure Double Authentication for Access Control"
slug: "configure-double-authentication-for-access-control"
updated: 2024-12-06T00:05:06Z
published: 2024-12-06T00:05:06Z
canonical: "ametawiki.ametagroup.com/configure-double-authentication-for-access-control"
---

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

# Configure Double Authentication for Access Control

## Description
Two-factor authentication requires users to open doors by two access methods, thus enhancing access control security. **When this mode is enabled, users cannot use voice assistant to open doors**.

The configuration routes may vary by model.

| Models | Routes |
| --- | --- |
| S539 | Settings> Key/Display > Access Authentication Mode |
| X915|Access Control > Relay > Access Authentication Mode of The Building Theme |
| R29| Intercom > Key/Display > Access Authentication Mode of The Building Theme |
| X912 | Directory > User > +Add > Access Setting|
| E16/A08 | Access Control > Relay > Access Authentication Mode |

This article takes R29 as an example.

## Configuration on the Web Interface
1. Log into the device’s web interface with the username and password. The default is admin.
2. Navigate to the Intercom > Key/Display > Access Authentication Mode of The Building Theme interface.
:::(Info) (Note)
To use two-factor authentication,

* R29 and X915 should be set in the Building Theme. Navigate to the device web **Intercom(Setting) > Key/Display >Theme** interface.
* E16 should be set in the Default theme. Navigate to the device web **Device > LCD > Theme** interface.

:::
3. Select the desired two-factor authentication mode for door opening.
* Face+PIN: scan the user's face and enter the PIN code on the device.
* Face+RF Card: scan the user's face and swipe the RF card on the device.
* RF Card+PIN: swipe the RF card and enter the PIN code on the device.
![image.png](https://cdn.document360.io/698fbf35-46b1-42c8-9a01-0506761ce4e8/Images/Documentation/image-PJUPMW06.png){height="" width=""}

4. Click Submit to save the configuration.

## Configuration on the Device
S539, R29, and X915 support setting up two-factor authentication directly on the device.

1. On the Dial screen, enter **9999**, and tap the dial icon.
2. Enter **3888 **and tap OK to enter the system setting screen.
3. Tap **Authentication Mode** and select the desired mode.
![image.png](https://cdn.document360.io/698fbf35-46b1-42c8-9a01-0506761ce4e8/Images/Documentation/image-8IGPHK0U.png){height="" width=""}

4. Tap Confirm to save the settings.