Unlock by Public PIN
There are two types of PIN codes for door access: public and private. A private PIN is unique to each user, while the public one is shared by residents in the same building or complex. You can create and modify both the public and private PIN codes.
To set up the public PIN, go to the web Access Control > PIN Setting interface.

PIN Code: Set a 5-8 digit PIN code accessible for universal use. The default is 33333333.
Relay: The relay to be triggered.
You can also set it up on the Setting > Security > Public PIN screen.

Virtual PIN
The virtual PIN allows you to protect your PIN code from being leaked to someone.
To enable the virtual PIN feature, navigate to the Access Control > PIN Setting > Virtual PIN interface.

Enabled: If enabled, you are allowed to put fake numbers on both sides of the PIN code for PIN code protection. For example, if your password is 1234567, you can put 99 and 88 on both sides (99123456788). The virtual password is matched to the user by the number of matched digits. For example, if user A has a greater number of digits that are matched with the virtual password entered than user B, then it will be regarded as user A’s password. However, when the double authentication is applied, then the virtual password will be matched with the users who pass the first level of authentication, for example, Face + PIN.
Note
This feature is not used for Public PIN and Apartment+PIN.
User-specific Access Methods
The private PIN code, RF card, Bkey, facial recognition settings, etc, should be assigned to a particular user for door opening.
When adding a user, you can also customize settings such as defining the door access schedule to determine when the code is valid and specifying which relay to open. You can add up to 20,000 users.
To add a user, go to Directory > User interface and click +Add. You can also add a user on the device Setting > User screen.

User ID: The unique identification number assigned to the user.
Name: The name of this user.
Unlock by Private PIN Code
On the Directory > User > +Add interface, find the Private PIN section.

Code: Set a 2-8 digit PIN code solely for the use of this user.
You can disable the use of private PINs and set the PIN mode on the Access Control > PIN Setting > Private PIN interface.

PIN Mode:
PIN: Solely enter the PIN code for door access.
APT+Key: Enter the Apartment Number first before entering the PIN code for the door access. Apartment Number can only be applicable when the device is connected to the Akuvox SmartPlus.
Actions Triggered by Entering Private PINs
You can set actions triggered by entering private PINs on the Access Control > PIN Setting > Private Key Event interface.

Action to Execute:
FTP: Send a screenshot to the preconfigured FTP server.
Email: Send a screenshot to the preconfigured Email address.
HTTP: When triggered, the HTTP message can be captured and displayed in the corresponding packets. To utilize this feature, enable the HTTP server and enter the message content in the designated box below.
HTTP URL: Enter the HTTP message if selecting HTTP as the action to execute. The format is http://HTTP server’s IP/Message content.
Unlock by RF Card/Bkey
On the Directory > User > +Add interface, find the RF Card & Bkey section.

Code: The card code or Bkey code that the device reads.
Note
Click here to view the detailed steps of configuring Bkey.
RF cards operating at 13.56 MHz and 125 KHz frequencies are compatible with the device for access.
Each user can have a maximum of 5 cards added.
The device allows adding 20,000 users.
You can disable the use of cards on the Access Control > Card Setting > Card Type interface.

RF Card Code Format
To integrate the RF card door access with the third-party intercom system, you need to match the RF card code format with the one used by the third-party system.
To set it up, go to Access Control > Card Setting > RFID interface.

IC/ID Card Display Mode: Select the card number format from the provided options. The default is 8HN.
ID Card Order: Set the ID card reading mode between Normal and Reversed.
Actions Triggered by Swiping Cards
You can set actions triggered by swiping cards on the Access Control > Card Setting > Card Event interface.

Action to Execute:
FTP: Send a screenshot to the preconfigured FTP server.
Email: Send a screenshot to the preconfigured Email address.
HTTP: When triggered, the HTTP message can be captured and displayed in the corresponding packets. To utilize this feature, enable the HTTP server and enter the message content in the designated box below.
HTTP URL: Enter the HTTP message if selecting HTTP as the action to execute. The format is http://HTTP server’s IP/Message content.
Unlock by Fingerprint
The S535 with the fingerprint module installed supports opening doors via fingerprint keys.
On the Directory > User > +Add interface, find the Finger section. Click Obtain to start registering the fingerprint.

Place the user’s finger that is used to open the door in the fingerprint reader area. The same fingerprint needs to be recorded three times.
Unlock by Facial Recognition
On the Directory > User > +Add interface, find the Face section.

Photo: Max File Size: 2M; Format: .jpg/.png.
Facial Recognition Settings
The door phone allows you to adjust facial recognition accuracy, recognition intervals, and more to enhance user experience.
Set it up on the Access Control > Face Settings interface.

Facial Recognition Enabled: Enable/disable the facial recognition function.
Offline Learning Enabled: Facial recognition accuracy improves as the number of facial recognition increases.
Facial Recognition Matching Level: Determine how strict the facial recognition system is in comparing a person’s face with uploaded face data. Each level allows a different degree of difference or face covering (excluding the mouth area) to pass the recognition.
Low: Allow slight differences from the uploaded face data, with little face coverage.
Highest: Require the face to be identical to the uploaded one, with minimal or no covering.
The other two levels are in between.
Antispoofing Option: Set how strict the system is in preventing fake faces.
Close: Disable the facial anti-spoofing function. Facial verification can be passed using non-living substitutes for an authorized person's face, such as a photo.
Highest: The system cannot be fooled by any non-living substitutes for an authorized person's face.
The other three levels are in between.
Facial Recognition Interval: Adjust the time interval between each facial recognition attempt, ranging from 1 to 8 seconds.
Visitor-Friendly Mode: Decide whether to display prompts when facial recognition fails. When enabled, no visual or auditory prompts will be given when the recognition fails.
Unlock by Bluetooth
The device supports opening the door via Bluetooth-enabled My MobileKey or SmartPlus App. Users can either open the door with the apps in their pockets or wave their phones towards the device as they get closer to the door.
Note
Before using Bluetooth to open doors, you need to enable the Bluetooth function on the Access Control > BLE interface.
Unlock via My MobileKey
On the Directory > User > +Add interface, scroll to the BLE Setting section.

Authentication Code: Click Generate to generate a 6-digit verification code.
Bluetooth Unlock Settings
Set up the Bluetooth-unlock feature on the Access Control > BLE interface.

Enable Hands Free Mode: If enabled, users can gain door access hands-free. If disabled, users have to wave their hands near the device to open doors.
Trigger Distance: Set the triggering distance of the Bluetooth for the door access. You select Within 1 Meter, Within 2 Meters, and Within 3 Meters. The trigger distance is 3 meters maximum.
RSSI Threshold: Set the received signal strength. Higher values indicate stronger signal strength, making it easier to receive the Bluetooth signal.
Bkey Trigger Signal: There are three ranges that determine the Bkey trigger distance, ranging from 1 meter to 5 meters.
Unlock Interval For Same User(Sec): Set the time interval between consecutive Bluetooth door access attempts for the same user.
Unlock Interval For Different Users(Sec): Set the time interval between consecutive Bluetooth door access attempts for different users.
Authentication Code Valid Time: The pairing valid time within which users need to finish the pairing with the My MobileKey App.
Note
To learn about detailed configuration steps of different Bluetooth-based access methods, you can click the following articles.
Device Info Settings
You can customize the device name and ID for convenient Bluetooth pairing.
To set it up, go to Access Control > BLE > Device Info Settings interface.

Device Name: Limited to 1-63 numbers or characters.
Device ID: Limited to 1-12 numbers or characters.
Access Setting
You can customize access settings, such as defining the door access schedule to determine when the code is valid and specifying which relay to open.
On the Directory > User > +Add interface, scroll to the Access Setting section.

Allow To Open: Check the relay to be opened.
Floor No.: Specify the floor(s) that are accessible to the user via the elevator.
Web Relay: Specify the ID of the web relay action commands that you’ve configured on the Web Relay interface. A default value of 0 indicates that the web relay will not be triggered.
Schedule: Grant the user access to open designated doors during preset periods by relocating the desired schedule(s) from the left box to the right one. Besides custom schedules, there are 2 default options:
Always: Allows door opening without limitations on door open counts during the valid period.
Never: Prohibits door opening.
You can also set up users’ access methods on the Setting > User > User List screen.

Import/Export User Data
The door phone supports User Data of access control to be shared among Akuvox door phones through import and export while you can also export the facial data out of the door phone and then import it to a third-party device.
Click here to view how to import and export user data between Akuvox door phones.
Navigate to the web Directory > User > Import/Export User interface. The device supports 20,000 users.

Note
The exported file is in TGZ format; the imported file should be in XML or CSV format.
Access Authentication
You can set up multiple access authentication modes, and set up authentication security as needed.
Set it up on the Access Control > Relay > Access Authentication Mode interface. This feature applies to the Building theme.

Authentication Mode: Determine how to unlock the door using different methods. Please note that the order of the two-factor authentication matters.
Any Method: Allows all access methods.
Face + PIN: Scan the face first, then enter the PIN code.
Face + RF Card: Scan the face first, then swipe the RF card.
RF Card + PIN: Swipe the RF card first, then enter the PIN code.
You can also set up the access authentication on the Setting > Security > Authentication Mode screen.

Entry Restriction
You can limit users from opening the door repeatedly for a short time.
To set it up, go to the Access Control > Relay > Access Authentication Mode interface. It is disabled by default.

Restriction Time(Sec): Specify the time within which the same user cannot open the door twice. For example, if it is set to 1800 seconds, the user cannot open the door again until 30 minutes later.
Mifare Card Encryption
The device can read encrypted Mifare cards for greater security. When this feature is enabled, it reads the data in the cards’ designated sectors and blocks, not the UID.
Click here to view the details of encrypting and reading Mifare cards.
Set it up on the Access Control > Card Setting > Mifare Card Encryption interface.

Classic:
Sector/Block: Specify the location where encrypted card data is stored. A Mifare card has 16 sectors (numbered 0 to 15), and each sector has 4 blocks (numbered 0 to 3).
Block Key: Set a password to access the data stored in the predefined sector/block.
Plus: You can set up three choices. This means you can use three types of Mifare Plus cards. When swiping a card, as long as one of the choices matches its SL key, the card code in the block you specified will be output.
Block: Specify the block(s) to be read.
SL3: The key number within 32 bits.
DesFire:
App ID: A 6-digit hexadecimal number
File ID: The ID of the encrypted file of the app, which can be a number from 0 to 16.
Crypto: The encryption method, either AES or DES.
Key: The file key.
Key Index: The index number for the key, which can be a number from 0 to 11.
Unlock by QR Code
You can use a QR code to unlock the door with the door phone. This method requires the Akuvox SmartPlus cloud service. You have to activate this feature before using it.
Enable the QR code door-opening function on the Access Control > Relay > Open Relay Via QR Code interface.

Unlock by HTTP Command
You can unlock the door remotely without approaching the device physically for door entry by typing in the created HTTP command (URL) on the web browser to trigger the relay when you are not available by the door for door entry.
Set it up on the web Access Control > Relay > Open Relay via HTTP interface.

Session Check: When enabled, the HTTP unlock requires logging into the device’s web interface. Or, the door opening may fail.
Username: Set a username for authentication in HTTP command URLs.
Password: Set a password for authentication in HTTP command URLs.
Tip
Here is an HTTP command URL example:
Note
Click here to view how to set up door opening by HTTP commands.
Unlock by DTMF Code
Dual-tone multi-frequency signaling(DTMF) is a way of sending signals over phone lines by using different voice-frequency bands. Users can use the DTMF function to unlock the door for visitors during a call by either typing the DTMF code on the soft keypad, or tapping the unlock tab with the DTMF code on the screen.
Set it up on the Access Control > Relay interface.

DTMF Mode: Set the number of digits for the DTMF code.
1 Digit DTMF: Define the 1-digit DTMF code within the range (0-9 and *,#) when the DTMF Mode is set to 1-digit.
2-4 Digit DTMF: Set the DTMF code based on the number of digits selected in the DTMF Mode.
DTMF Data Transmission
In order to achieve door access via DTMF code or some other applications, you are required to properly configure DTMF in order to establish a DTMF-based data transmission between the device and other intercom devices.
DTMF Type Differences:
Inband | DTMF signals are transmitted within the same audio channel as voice data. Simple implementation but signal distortion may occur with highly compressed codecs (e.g., G.729). |
RFC2833 | Transmits DTMF as special event packets over RTP (Real-Time Transport Protocol), known as out-of-band transmission. Reliable and unaffected by codecs. |
Info | Sends DTMF signals via SIP (Session Initiation Protocol) signaling channel. Separate from voice transmission, ensuring audio quality. |
Info+Inband | Combines Info and Inband methods. |
Info+RFC2833 | Combines both Info and RFC2833 methods. |
Info+Inband+RFC2833 | All three methods are used simultaneously. |
Set it up on the Account > Advanced > DTMF interface.

DTMF Whitelist
To secure door access via DTMF codes, you can set up the DTMF whitelist on the device web Access Control > Relay > Open Relay Via DTMF interface so that only the caller numbers you designated in the door phone can use the DTMF code to gain door access.

Assigned The Authority For: Specify the contacts authorized to open doors via DTMF:
- None: No numbers can unlock doors using DTMF.
- Only Contacts List: Only numbers added to the door phone's contact list can unlock via DTMF.
- All Numbers: Any numbers can unlock using DTMF.
Unlock by Exit Button
When users need to open the door from inside by pressing the Exit button, you need to set up the Input terminal that matches the Exit button to activate the relay for the door access.
Click here to watch the instruction video.
Set it up on the web Access Control > Input > Input interface.

Enabled: To use a specific input interface.
Trigger Electrical Level: Set the input interface to trigger at low or high electrical level.
Action To Execute: Set the desired actions that occur when the specific Input interface is triggered.
FTP: Send a screenshot to the preconfigured FTP server.
Email: Send a screenshot to the preconfigured Email address.
SIP Call: Call the preset number upon trigger.
HTTP: When triggered, the HTTP message can be captured and displayed in the corresponding packets. To utilize this feature, enable the HTTP server and enter the message content in the designated box below.
HTTP URL: Enter the HTTP message if selecting HTTP as the action to execute. The format is http://HTTP server’s IP/Message content.
Action Delay: Specify how many seconds to delay executing the preconfigured actions.
Action Delay Mode:
Unconditional Execution: The action will be carried out when the input is triggered.
Execute If Input Still Triggered: The action will be carried out when the input stays triggered. For example, if the door stays open after triggering input, an action such as an email will be sent to notify the receiver.
Execute Relay: Specify the relay to be triggered by the actions.
Alarm Door Opened: If enabled, when the door-opening time exceeds a limit, an alarm will be triggered.
Door Opened Timeout: The door-opening time limit.
Break-in Intrusion: Activate an alarm when the door is forcibly or illegally opened. Only by checking off this option can the alarm be turned off once triggered. It is incompatible with the Execute Relay feature. Click here to learn more about this feature.
Door Status: Display the status of the input signal.
Latching PIN
The door opens when the user enters the PIN and stays open until the PIN is entered again.
Set it up on the Access Control > PIN Setting interface.

Enabled: The function is disabled by default.
PIN Code: The code should be within 4 to 8 digits. It cannot be the same as the public or private PIN. The PIN code must be set up. Otherwise, the function will not take effect.
Note
The relay schedule takes priority over the latching PIN feature, keeping the door open during scheduled times. Users cannot close the door with the latching PIN.
The latching PIN feature takes priority over user credentials. When the door is opened with the latching PIN, it cannot be closed using credentials like an RF card.
