Master Call Point

The Master Call Point serves as the tactical command hub for your wireless lockdown infrastructure, providing a fail-safe trigger for site-wide emergency signaling.
A single activation propagates a secure, encrypted signal across the entire estate within milliseconds. Operating independently of Wi-Fi or local network stability, it ensures critical safeguarding alerts are broadcast even during total IT infrastructure failure.
Lockdown Alert Gallery
Experience the high-recognition tones utilized by the tactical network upon Master activation.
Architecture Overview
The Master Call Point is the operational “heart” of the lockdown system. Typically situated in security hubs, main reception areas, or school offices, it provides authorized personnel with the ability to initiate an immediate, coordinated response across all paired sounders and beacons.
For high-capacity environments, the system can be enhanced with PC, mobile, and digital signage messaging, providing written reinforcement to the audible alerts and reducing transition time during critical procedures.
System Differentiation
- Network Independence: Alerts function even if IT systems or building power are compromised.
- Non-Invasive Deployment: Wireless mesh technology removes the need for disruptive cabling.
- Elastic Scaling: Seamlessly expand from a single block to a multi-building estate infrastructure.
Key Capabilities
- Centralized Activation: Primary trigger for the entire independent wireless ecosystem.
- RF Mesh Integrity: Utilizes 434.525 MHz secure signaling – independent of Wi-Fi or 4G.
- Secure Manual Reset: Key-controlled reset ensures alerts are only cleared by designated responders.
- Autonomous Power: Industrial battery architecture guarantees performance during mains failure.
Operational Workflow
- Activation: Personnel engage the Master Call Point upon threat identification.
- Secure Broadcast: The hub sends an encrypted signal through the self-healing mesh.
- Synchronized Alert: Every paired sounder and beacon activates in unison site-wide.
- Written Confirmation: (Optional) Messaging layers trigger on PC screens and mobile devices.
- Resolution: The system is reset and returned to standby via the high-security key.
Technical Specification
- System Type: Wireless Master Activation Hub
- Operating Frequency: 434.525 MHz Secure Mesh RF
- Wireless Range: Up to 1km (Line-of-Sight)
- Power Architecture: Industrial D Cell or AA Battery sets
- Enclosure Material: High-impact UL-rated Polycarbonate
- Operating Temp: -10°C to +60°C
- Compliance: Protect Duty / Martyn’s Law Standards
Infrastructure Documentation

Schematic Dimensions

Receiver Integration

Tactical Linkage
Deployment & Installation
The hub is strategically positioned in high-authority locations (Offices, Security Posts, Safeguarding Hubs). The battery-powered, wireless design enables rapid deployment in active buildings with zero requirement for invasive cabling or IT department dependency.
Expert Consultation & Implementation
We specialize in mission-critical wireless infrastructure for schools, MATs, and public venues. From initial site mapping to professional implementation, we ensure your lockdown protocols are fail-safe.
Strategic Infrastructure Partner for Multi-Academy Trusts (MATs).




