How the Algo IP Doorphone Works

• Visitors press the call button on the 8028-intercom station to initiate calling to a configured extension such as a security desk or hunt group.
• Answering the intercom call enables two-way communication with the visitor. Any telephone, device or client on the UC platform can communicate with the door phone (e.g., mobile, or wireless phone, soft client on a tablet or laptop, desk phone).
• Alternatively, the door phone extension can be called directly from any telephone or device. The door phone will auto-answer to permit a two-way voice call via the intercom station.
• During the intercom call the telephone keypad can be used to enter a door open code (e.g. digit 6, or up to four digits). Once activated the 8028-access control relay will permit a momentary unlock of the entrance for the visitor to gain access through the door or gate in a secure and efficient manner. Note: Duration of the relay activation is configurable via the 8028 web GUI, as is the open code and the extension called from the intercom station.

Secure Door / Gate Access Control

A controller + intercom station are two components of the 8028 IP door phone. The controller provides the network connection and the relay for door / gate access control. As the controller is generally located inside the premise, the 8028 is a secure solution in the event there is tampering of the public-facing intercom station. The relay and network connection are in no way exposed, and unauthorized entry to the building or access to the network is prevented.

The 8028-access control relay can connect to any type of industry standard door strike, gate activation system or access / security control panel. A 30V 1A normally open or normally closed relay is available from the 8028 controller for this purpose. A door strike is not included with the 8028 IP door phone.

VIDEO: How To Wire A Door Strike

Generally it is best the strike power be provided using the manufacturer’s power supply, however, the 8028 IP door phone can provide 24V strike power when powering the door phone with PoE + (IEEE 802.3at) or purchasing the Algo X24VG Power Supply. Powering the device via PoE (IEEE 802.3af) provides no strike power. Please see the 8028 product specifications for the available strike power amperage with either the PoE + or Algo power supply option. Note: When extending the 8028 outside the perimeter of a building the X24VG Power Supply is recommended for earth grounding to meet safety and regulatory requirements.

Auxiliary Low Voltage Inputs & Outputs

A number of low voltage programmable inputs and outputs available from the controller and intercom station. Common uses for the auxiliary relays include configuring an input to use an existing doorbell, for example, or a relay output to activate a loud ringer or strobe light for intercom call telephone ring alerting. A door sensor input is also available for configuration, including the option to activate an alarm if the door remains open for an extended period (e.g., tailgating, leaving the door ajar).

Legacy Analog Doorphone Retrofit for Upgrading to VoIP

The 8028 SIP Doorphone eliminates the need for an ATA or FXS port.

When migrating a legacy telephone system to VoIP, the 8028 is ideally suited as retrofit solution of an existing analogue intercom. It is often the case that 24 gauge twisted pair wiring is used with legacy intercom systems. This wiring can be re-used to connect the 8028 controller to the Algo intercom station, thereby saving time and money in not having to re-wire. Twisted pair wiring can also be used to wire the relay for door / gate control. Note: The Algo 8028 controller cannot be wired to a legacy analogue intercom station.

Benefits of the Algo IP Doorphone

• Network managed and supervised SIP endpoint.
• Eliminates FXS port or ATA.
• PoE (IEEE 802.3af) for plug and play network connectivity.
• Two-piece solution including controller + intercom station secures the access control relay and the network connection.
• Twisted pair 24-gauge wiring simplifies retrofit applications when upgrading legacy analogue intercom systems to VoIP.
• Extended wiring flexibility of up to 1000 feet (305m) for gate applications outside the perimeter of the building.
• Wideband G.722 HD voice audio for clarity and intelligibility.
• Backlit call button for better visibility in low light conditions.

• Wideband G.722 codec support for HD Voice.
• Initiates or accepts intercom calls.
• Supports RTP multicast and Polycom Group Page (receive).
• SIP compatibility with leading UC vendors / VoIP platforms.
• Configurable through a web interface.
• Auto-provisioning (i.e., TFTP, FTP, HTTP, HTTPS). Also supported: TLS & SRTP (secure SIP signalling and media), SIP over TCP (allows increased packet size over UDP), DNS SRV Record, and CDP/LLDP automatic VLAN assignment.
• Compatible with any third party SNMP monitoring software or the Algo 8300 IP Endpoint Supervisor (Controller).
• Supervised link to intercom station monitors fault conditions to minimize down time.
• Integrated access control relay from separate controller located securely from the public-facing intercom station.
• 24 gauge twisted pair wiring up to 1000 feet (305m).
• Backlit call button for low light conditions, with button flash indication for call initiation and connectivity.
• Surface mount or flush mount installation in standard double gang box.
• Complete door phone / intercom solution as one-part number / SKU.
• PoE (IEEE 802.3af); (PoE + IEEE 802.3at if 24V 0.5A strike power required).
• UL/CSA, FCC and CE certified; NEMA 3R outdoor rated.
• Dimensions – Intercom Station: 4.5” x 4.5” x 1.2” (11.5 cm x 11.5 cm x 3.1 cm), Controller: 6.5” x 4.3” x 1.3” (16.5 cm x 10.9 cm x 3.3 cm)

Power

• Power Input: PoE /PoE+ IEEE 802.3af/at. Nominal 2W max 8W
• Optional 24V DC power supply for non-PoE installation or Earth grounding

Network Connection:

• Female RJ45 Jack

SIP:

• UDP, TCP, TLS, RTP, SRTP

Multicast:

• Receive 50 zones IGMP, RTP

Audio Codecs:

• G.711 A-law, G.711 u-law, G.722 Wideband

Configuration:

• Web interface or provisioning server

Web Interface:

• HTTP, HTTPS

Provisioning:

• TFTP, FTP, HTTP, HTTPS
• DHCP Options 66, 150, 160
• Reboot via SIP check-sync

Networking:

• IPv4, IPv6, DHCP, VLAN, MDNS

Link Layer:

• LLDP, CDP

QoS:

• DSCP

Supervision:

• SNMP V3

NAT:

• STUN, TURN, CRLF Keep Alive
• SIP Outbound

Address Resolution:

• DNS, SRV Record

Redundancy:

• Secondary and tertiary SIP server

Time:

• NTP Server (up to four)

API:

• RESTful API (contact Algo for custom applications)

Door Station Enclosure:

• High impact UV stabilized flame-retardant plastic with stainless steel (8028) or anodized aluminium (8028V2) faceplate

Door Station Wiring:

• Single pair twisted wire 24 AWG up to 1000’ (305m) for power, digital signalling and supervision.

Call Button Function:

• Call SIP extension (speak IP address before registration)

Speaker:

• Weatherproof mylar

Microphone:

• Omnidirectional

Hands-Free:

• Non-blocking two way voice

Audio Memory:

• 1 GByte audio storage

Door Relay Output:

• NO, C, NC contacts rated 30V 1A maximum

Door Relay Power:

• 24Vdc 500mA when powered by PoE+
• 24Vdc 250mA with auxiliary DC power supply (optional)

Door Sensor Input:

• Max 6.5 kOhm external resistance. Selectable NC or NO input

Environmental:

• Outdoor IP66 -40 to +50 deg C

Door Station Dimensions:

• 11.5 cm W x 11.5 cm H x 3.0 cm D

Mounting:

• Flush or surface mount in 2-gang electrical box. The 8028 kit includes a plastic bezel for surface mounting as a convenience. Wall bracket included for control unit.

Regulatory Compliance &Certifications:

• IEEE 802.3-2018, RoHS, CE, FCC Class A, CISPR 32 Class A, CISPR 24, CSA/UL (USA & Canada) & IEC 62368-1
• AS/ NZS 60950.1

• Visitor communication and access control through secure door / gate entrances (e.g., school, long-term care / assisted living retirement facility, hotel / resort, casino, transport terminal (i.e., airport, bus, rail), delivery entrance, dock, warehouse, man trap, outdoor yard or facility entrance, parking lot, driveway gate, etc.).
• Intercom for emergency (e.g., elevator) and non-emergency access points (e.g., student dorm, hospital ward, day care, conference room, recreation area, office suite, data centre, lab, etc.).
• Office or room intercom (e.g., medical examination or patient room, interview room, etc.).