Algo 8373 IP Zone Paging Adapter

The Algo 8373 IP Zone Paging Adapter enables organisations to integrate SIP-based VoIP telephone systems with existing analogue paging amplifiers while providing flexible multi-zone paging control. Designed for IP communication environments, the device allows announcements to be broadcast across three independent paging zones connected to a single amplifier. This allows targeted communication across different areas of a building such as offices, warehouses, reception areas or production facilities while maintaining seamless integration with modern VoIP communication platforms.

Multi-Zone Paging with Existing Amplifiers

The Algo 8373 provides three relay-controlled paging zones, enabling a single amplifier to serve multiple groups of speakers. Each zone can be activated independently, allowing announcements to be directed to specific areas or broadcast across all zones simultaneously. This eliminates the need for a separate legacy zone controller while maintaining existing paging infrastructure.

Seamless Integration with VoIP Telephone Systems

The adapter operates as a SIP endpoint and registers directly to IP PBX or hosted VoIP platforms. Users can initiate paging by dialling a SIP extension, receiving multicast audio streams, or using DTMF commands. This allows organisations to extend their communications system beyond desk phones and deliver announcements across large facilities.

Scalable Paging Using Multicast Technology

In addition to analogue paging outputs, the 8373 supports RTP multicast transmission, enabling announcements to be broadcast to IP speakers and other compatible endpoints across the network. Multiple adapters can also be deployed to support additional paging zones in larger buildings.

High Quality Audio for Clear Voice Announcements

The 8373 supports wideband audio codecs including G.722 HD voice, ensuring clear and intelligible speech for paging announcements. The device includes an isolated balanced line output designed to minimise electrical noise and interference when connected to paging amplifiers.

Flexible Installation with Power over Ethernet

The device supports Power over Ethernet (PoE), allowing both power and network connectivity to be delivered via a single Ethernet cable. Its compact design allows installation within communications cabinets, wall mounts or equipment racks for easy deployment in enterprise environments.

Advanced Configuration and Management

The Algo 8373 can be configured through an intuitive web-based management interface or deployed using automated provisioning methods. The device supports remote monitoring, configuration tools and network management platforms, allowing IT teams to easily manage paging infrastructure across their organisation.

Key Features and Capabilities

• Supports Three Independent Paging Zones for Targeted Announcements Across Different Areas of a Facility
• Dual-Purpose Supports both Voice Paging and Loud Ringing for Noisy Environments
• Wideband G.722 HD Voice Codec for Clear and Intelligible Speech Announcements
• Multicast Paging Support for Scalable IP Audio Distribution Across Networks
• Isolated Balanced Line Level Output to Minimise Noise and Interference when Connected to Paging Amplifiers
• 1GB Internal Memory for Uploaded WAV or MP3 Audio Files and Pre-Recorded Announcements
• Secure SIP Communication Using TLS Signalling and SRTP Media Encryption
• Web Based Management Interface with Support for Remote Configuration and Auto-Provisioning
• Power-over-Ethernet (PoE) Support for Simplified Installation and Reduced Cabling

Technical Specificatons

General

• Product Type - IP Zone Paging Adapter
• Paging Zones - 3 Independent Relay Controlled Paging Zones
• Device Role - IP Paging Interface for Analogue Paging Amplifiers
• Deployment Environment - Indoor Installation

VoIP & Network

• Protocol Support - SIP (Session Initiation Protocol)
• Audio Transport - RTP Streaming
• Multicast Support - Send and Receive Multicast Paging Streams
• Ethernet Interface -  1 × 10/100 Mbps Network Port
• IP Support - IPv4 and IPv6
• QoS Support - VLAN and DSCP Prioritisation
• Network Time Synchronisation - NTP

Audio

• Supported Codecs - G.711 (µ-law, A-law), G.722 Wideband
• Audio Output - Balanced Line Level Output for Connection to Paging Amplifiers
• Output Connection - Mini XLR Connector or Terminal Block
• Input Impedance Compatibility - 600 Ω – 10 kΩ
• Automatic Gain Control and Configurable Audio Levels

Paging & Zone Control

• 3 Relay Controlled Paging Zones for Amplifier Zone Switching
• Paging Zones Selectable via SIP Extension, Multicast or DTMF Control
• Supports Multiple SIP Paging Extensions for Zone Selection
• Multicast Support for Scalable IP Paging Deployments

Security

• TLS Encryption for SIP Signalling
• SRTP Encryption for Secure Audio Transmission
• IEEE 802.1X Network Authentication Support

Management & Provisioning

• Web Based Configuration Interface
• Remote Provisioning via HTTP, HTTPS, FTP or TFTP
• SNMP Monitoring Support
• DHCP Option Provisioning

Power

• Power-over-Ethernet (PoE) 802.3af Class 0

Certifications

• CE, FCC, UL / CSA

Package Contents

• Algo 8373 IP Zone Paging Adapter
• Network Cable
• Wall Mount Bracket & Screws
• Getting Started Sheet