Akuvox E21A SIP Emergency Phone with 3G / 4G option

E21 Audio Emergency / Safety Phones are designed for use in lifts,  parks, school campuses, tunnels, highways, car parks etc. For applications where it is not possible / feasible to run cables, these intercoms can be 3G enabled to work over the Cellular network.

  • Panic Button for Emergency Calls
  • Anti Vandal and IP 65 Weather Proof – 316 grade stainless steel construction
  • Flush mount installation
  • IEEE802.3af PoE
  • 2 x Input and 2 x output relays for alarm or door opening
  • SIP enabled for easy integration with IP Phone Systems

E21 is a in wall mount device and requires a flush mount kit, Please click on E21 Flush Installation Kit to order.

For 4G enabling the device, please contact us for more information.

4 in stock



Akuvox E21A SIP Emergency Phone is specially designed to work in extreme outdoor conditions. Akuvox E21A is SIP based and can work as standalone or integrate with IP Phone Systems for extra convenience.

Akuvox E21A SIP Emergency phone is especially suited for Parks, School campuses, Tunnels, Highways, Car parks, Mine-sites, etc. It can also be 3G/ 4G enabled to work in remote areas where no wired network is available.

Akuvox E21A Datasheet

Akuvox E21A SIP Emergency Phone At a Glance

 One panic button input for emergency intercom;

 Two-way audio communication over IP networks with Echo Cancel feature;

 PoE (IEEE802.3af, Power-over-Ethernet);

 Complies with SIP standard for easy integration in every SIP capable PBXes: CUCM, Avaya, Asterisk, Digium, etc;

Additional information

Weight 2 kg


  • 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
  • Audio

    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
  • Video

    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

    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



Akuvox E21A Datasheet

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