Akuvox E21A SIP Emergency Intercom 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 Main unit can be Flush / Surface mounted, for more details please scroll down to Accessories and Complementary Products.

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Akuvox E21A SIP Emergency Intercom 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.

The vandal resistant E21 Intercom features single call-button, audio-only communication (no camera) and high quality IP-rated microphone and loudspeaker. This unit can be flush-mounted or surface-mounted 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)
  • Complies with SIP standard for easy integration in every SIP capable PBXes: CUCM, Avaya, Asterisk, Digium, etc;

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. It also supports integration with Akuvox Smartplus Mobile Video Service to enable receiving intercom calls on mobiles / landlines.

Application Scenarios

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



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

Additional information

Weight 2 kg


PoE Switch

Electric Strike


Akuvox E21A Datasheet

Accessories & Complementary Products…