Akuvox – E21A Vandal Resistant IP Door Intercom, Audio Only


Akuvox – E21A

Vandal Resistant IP Door Intercom, Audio Only

Code Description log-in log-in Quantity
AK-1000 Akuvox – E21A Vandal Resistant IP Door Intercom, Audio Only log-in log-in


The E21A Vandal-resistant IP Door Intercom from Akuvox combines elegance and simple design with robust material to safeguard this product in public spaces. Audio only, this intercom provides simple and easy use.

The Akuvox E21A robust Intercom features single call-button, audio-only communication (no camera) and high quality IP-rated microphone and loudspeaker.

The E21A provides immediate communication where security is a focus and can be used either indoors or outdoors thanks to an ingress protection rating of IP65.

This IP-connected professional intercom door station allows complete system control and distribution over LAN, WAN and web networks and is PoE (Power over Ethernet) compatible for greater installation flexibility.

Flush or Surface Mountable:
This unit can be flush-mounted (E21XF) or surface-mounted (E21XS Silver or E21XSBLK Black) using back box options sold separately.


  • Vandal-resistant body
  • 1 call button
  • 2 input relays and 2 output relays
  • Premium audio quality
  • SIP/PoE
  • Outdoor-rated with IP67 grade microphone and IP66 grade speaker (overall IP65 rated)
  • Vandal resistant all-aluminium body
  • Flush or Surface mountable (back boxes sold separately)

Interface Features
• 2xRJ45 10/100 Mbps Ethernet ports
• Input relay: 2 relays for alarm alert
• Output relay: 2 relays for door opener

SIP Features
• SIP v1 (RFC2543), SIP v2 (RFC3261)
• Line: 2 SIP accounts

Audio Features
• 1 built-in microphone with IP67 rating
• 1.5W speaker with IP66 rating
• Codec: G.711a, G.711μ, G.722, G.729 and LPCM
• Speech quality: 7 kHz
• Echo cancellation
• Voice activity detection
• Comfort noise generator

Phone Features
• Auto-answering
• Volume control
• Direct IP calling

Application Scenarios
• Education: campuses
• Healthcare: hospitals, medical centers
• Logistics & Transportation: airports, parking facilities
• Industries: industrial parks of Manufacturing, Energy, Metal & Mining, Chemical industries


At a Glance

  • Vandal resistant body, with a panic button;
  • Wide-angle camera: 116° (H), 60° (V);
  • PoE (IEEE802.3af, Power-over-Ethernet);
  • Two-way audio communication over IP networks with Echo Cancel feature;
  • Complies with SIP standard for easy integration in every SIP capable PBXes;
  • Complies with ONVIF standard for easy integration with any network surveillance system;

Physical & Power

  • Front panel: 316 grade stainless steel
  • Camera: 2M pixels, automatic lighting
  • Button: 1 panic button
  • Reset: 1 reset button (on board)
  • Light sensor: Support
  • Infrared sensor: Support
  • Relays out: 2
  • Inputs: 2
  • Microphone: -40dB
  • Speaker: 8Ω / 1.5W
  • Ethernet port: RJ45, 10/100Mbps adaptive
  • 802.3af Power-over-Ethernet
  • 12 ~ 48V DC input (if not using PoE)
  • Water-proof & Dust-proof: IP65
  • Installation: Flush-mounted
  • Flush-mounted DIM: 210x120x61mm
  • Working Humidity: 10~90%
  • Working Temperature: -20°C ~ +55°C
  • Storage Temperature: -40°C ~ +70°C


  • SIP v1 (RFC2543), SIP v2 (RFC3261)
  • Narrowband audio codec: G.711a, G.711μ, G.729
  • Broadband audio codec: G.722
  • DTMF: In-band, out-of-band DTMF (RFC2833),SIP Info
  • Echo Cancellation
  • Voice Activation Detection
  • Comfort Noise Generator


  • Sensor: 1/2.7”, CMOS
  • Pixels: CIF, QCIF, VGA, 4CIF, 720p
  • Video codec: H.264, H.265
  • Video resolution: up to 1920x1080p
  • Max. image transfer rate: 1080p – 30fps
  • Viewing angle: 116°(H) / 60°(V)
  • High intensity IR LEDs for picture lighting during dark hours with internal light sensor
  • Compatible to 3rd-Party-Video components,e.g. NVRs

Door Entry Feature

  • Relays controlled individually by DTMF tones
  • Camera permanently operational
  • Auto-night mode with LED illumination
  • White balance: auto
  • Minimum illumination: 0.1LUX

Networking & Protocol


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)

Target Groups

  • Education: universities, campuses, schools
  • Logistics & Transportation: airports, parking lots
  • Healthcare: hospitals, laboratories
Description E21A
Enclosure Rating IP65
Button 1 panic button and 1 reset button on board
Call Indication 1 RGB LED (red, green, blue)
PoE IEEE802.3af
Power Consumption 12v DC input
Flush-mount Installation Requires E21XF Back Box (sold separately)
Surface-mount Installation Requires E21XS (silver) or E21XSBLK (black) Back Box (sold separately)
Body Material 316 grade stainless steel
Dimensions with Flush Mount Kit 210(H) x 120(W) x 61(D) mm
Weight (Net) 0.85kg
Weight (Gross) 1.00kg

AK-1000_Akuvox E21A Datasheet_191112_V2.0.pdf

AK-1000_Akuvox Linux Single Tenant Door Phone Administrator Guide_V2.0 202107.pdf

Akuvox Cloud - Single Tenant Property Setup Guide.pdf

Akuvox Cloud - Community Setup - Basic.pdf

Akuvox Cloud - Community Setup - Premium.pdf

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