SIP video doorphone with a numeric keypad for apartment buildings.
Akuvox R28 is a compact SIP video door phone designed for residential buildings, particularly suited to apartment complexes.
The device supports intuitive user interaction with a 4.3‑inch color TFT LCD touchscreen paired with a physical keypad for convenient input and control.
Constructed in a vandal-resistant housing, the R28 features a 2 MP HDR camera with a 125° (H) × 65° (V) field of view, enabling clear image capture even in varied lighting conditions.
Equipped for seamless two-way communication, it offers audio over IP with echo cancellation, ensuring crisp voice clarity.
The unit integrates easily into broader IP systems via a single RJ45 Ethernet port supporting SIP protocol, and includes Wiegand and RS485 interfaces for third-party system integration.
With support for PoE+, 2 relay outputs, 3 input ports, and options for flush or surface mounting, R28 delivers reliable and flexible access control suitable for modern residential deployments.
The device supports intuitive user interaction with a 4.3‑inch color TFT LCD touchscreen paired with a physical keypad for convenient input and control.
Constructed in a vandal-resistant housing, the R28 features a 2 MP HDR camera with a 125° (H) × 65° (V) field of view, enabling clear image capture even in varied lighting conditions.
Equipped for seamless two-way communication, it offers audio over IP with echo cancellation, ensuring crisp voice clarity.
The unit integrates easily into broader IP systems via a single RJ45 Ethernet port supporting SIP protocol, and includes Wiegand and RS485 interfaces for third-party system integration.
With support for PoE+, 2 relay outputs, 3 input ports, and options for flush or surface mounting, R28 delivers reliable and flexible access control suitable for modern residential deployments.
- 4.3-inch color TFT LCD touchscreen display with physical keypad
- Vandal-resistant housing designed for outdoor installation
- Linux operating system
- 2 MP HDR camera with a 125° (H) / 65° (V) field of view for wide-angle video capture
- Two-way audio communication over IP with echo cancellation
- 1 × RJ45 Ethernet port supporting high-speed network connectivity
- Wiegand and RS485 interfaces for integration with third-party access systems
- 2 output relays and 3 input ports for door control and sensor integration
- Flush-mounted and surface-mounted installation options
- Supports SIP and ONVIF protocols for compatibility with IP systems
- Powered via PoE+ (IEEE802.3at) or 12–24 V DC power supply
- Multi-method access control, including RFID (13.56 MHz & 125 kHz), PIN code, Bluetooth (BLE), and QR code scanning
Provides resident and visitor access control for various types of properties, including apartment complexes, office buildings, gated communities, and industrial facilities.
- Automatic initialization
- Web interface management
- Network traffic analysis via web-based packet capture
- Backup and restore of configuration settings
- Access log export
- Access list export and import
- Firmware update via web portal or cloud platform
- System log, including detailed door access logs
- Supports multiple access methods — suitable for diverse user needs;
- Durable and weather-resistant housing — ideal for outdoor installation;
- High-speed and accurate face recognition;
- Compatible with third-party security and access control systems;
- Easily integrates into IP infrastructure using standard protocols.
Akuvox R28
R28A
Physical & Power
Front panel
Aluminum
Display
4.3 Inch, color TFT LCD
Camera
2M pixels, automatic lighting
Light sensor
Infrared sensor
Gesture detection sensor
Button
Physical numeric keypad
Wiegand port
RS485 port
RF card reader
13.56MHz & 125kHz, NFC
Micro SD card slot
Relays out
2
Inputs
3
BLE
Water-proof & Dust-proof
IP65
Line out
1
LTE
Tamper alarm
Microphone
-42dB
Speaker
8Ω / 2W
Ethernet port
RJ45, 10/100Mbps adaptive
PoE
802.3af Power-over-Ethernet
Power out
DC12V / 1A (max)
Power
12V DC connector (if not using PoE+)
IP & IK rate
IP65 & IK10
Installation
Wall-mounted & Flush-mounted
Dimension (wall-mounted)
280x130x38mm
Dimension (flush-mounted)
280x130x68mm
Working humidity
10~90%
Working temperature
-20°C ~ +60°C
Storage temperature
-40°C ~ +70°C
Audio
SIP
SIP v1 (RFC2543), SIP v2 (RFC3261)
Narrowband audio codec
G.711a, G.711μ
Broadband audio codec
G.722
DTMF
In-band, out-of-band DTMF (RFC2833), SIP Info
Echo cancellation
Voice activation detection
Comfort noise generator
Video
Sensor
1/2.8”, CMOS for main camera
Pixels
CIF, QCIF, VGA, 4CIF, 720p, 1080p
Video codec
H.264
Video resolution
up to 1920x1080p
Max. image transfer rate
1080p – 30fps
Viewing angle
110° (H), 58° (V)
Compatible to 3rd-Party-Video components, e.g. NVRs
High-intensity IR LEDs for picture lighting during dark hours with internal light sensor
Networking & Protocol
Protocols support
IPv4, HTTP, HTTPS, FTP, SNMP, DNS, NTP, RTSP, RTP, TCP, UDP, ICMP, DHCP, ARP
Door Entry Feature
Relays controlled
Individually by DTMF tones
Multi-way unlock
Face, IC/ID Card, PIN, QR code and BLE
Camera
Permanently operational
White balance
Auto
Minimum illumination
0.1LUX
Deployment & Maintenance
Auto-provisioning
Web management portal
Web-based packet dump
Configuration backup / restore
Entry log export
Access table export / import
Firmware upgrade
System logs (include door access logs)