IP Access Control

Data Sheet

User Manaual

Wiring Diagram


Algo’s 8028 Door Phone is an outdoor rated IP intercom compatible with premise based and hosted SIP communication servers. By connecting to the VoIP telephone system, arriving visitors and guests can be greeted from any telephone or client and allowed entry by a simple key press.

Installation is simple and secure by use of single pair telephone wiring to the all weather digital door station, and a remotely located access control relay prevents tampering. Included brass and stainless steel faceplates combine with easy surface or recessed mounting to make the 8028 well suited for many applications including commercial, industrial, public facility, or private residence.

How it Works

  • Visitors press a back-lit call button on the two wire Door Station to initiate ring on one or more telephones
  • Answering the ringing phone enables communication with the visitor and door unlock capability


  • SIP Endpoint with auto-provisioning capability
  • Web interface for remote configuration
  • Initiates or accepts calls
Single Pair Digital Door Station
  • Single pair 24 AWG wiring up to 1,000 Ft (300 m) from controller
  • Flush or surface mount weather-resistant enclosure
  • Full duplex capable
  • Stainless steel or brass
  • Backlit call button
Security & Safety
  • Door control relay located securely inside the premise at the Controller location
  • Network connection not exposed outdoors
  • CSA/UL approved for outdoor location
  • Supervised link to door station
Door Sensor & External Call Button
  • Door sensor or call button input at controller or door station
  • In-use or call button output at controller or door station
  • Door control relay from controller with available 24 V 300 mA power
Residential or Commercial
  • FCC & CISPR22 Class B approval for residential use
  • Single pair wiring for easy retrofit
  • Equally suited for commercial, residential, or public facility


  • Secure Business Entrances
  • Access Control
  • Residential Gates
  • Airports
  • Hospitals
  • Hotels
  • Schools & Campuses
  • Parking Garages
  • Nursing Homes
  • Prisons
  • Casinos

Basic System Diagram


List of Compliant SIP Servers

 3Com  3CX  Aastra
 Alcatel  Allworx  Altigen
 Asterisk (Digium)  Avaya IP Office  Avaya CS1K
 Avaya Session Manager  Avaya SES  Broadsoft
 Cisco UC500 / UC5XX  Cisco (CME)  Cisco CUCM
  CudaTel   Denwa   Digium Switchvox
  Elastix  Epygi Quadro   Fonality
  FortiNet/Talkswitch   FreePBX   Genband
  Grandstream   Hybrex  Interactive Intelligence
 Ipitomy   LG Ericcson Metaswitch
  Microsoft Lync*  Mitel   NEC
  Netcelerate  Netsapiens   Nextiva
 Nortel SCS SIP Server   OpenPBX   Panasonic
 Shoretel  Siemens/Unify   Switchvox
 Toshiba   Trixbox   Zultys