Overview#
When a multi-agency wildfire response activates across three counties, every fire crew, police unit, and emergency medical team operates on separate radio talkgroups. The P25 Public Safety Radio module brings those talkgroups into a single operational workspace: dispatchers see live talkgroup membership, channel utilisation, and radio health metrics alongside Computer-Aided Dispatch (CAD) data without switching between systems.
The module connects cloud-native dispatch interfaces to APCO Project 25 (P25) digital radio networks, supporting both conventional and trunked configurations. Talkgroups are synchronised dynamically, statistics are streamed in real time, and every radio action is captured in an immutable audit log tied to the incident record.
Key Features#
- Talkgroup Synchronisation: Talkgroups are aligned dynamically between the physical radio system and the platform's incident management workspace, so changes made at the console or in the field are reflected immediately.
- Real-Time Statistics: Channel utilisation, talkgroup activity, and per-unit radio health metrics are streamed continuously, giving dispatchers and communications engineers an accurate live picture.
- Trunked and Conventional Support: The module interoperates with both P25 Phase 1 (FDMA) and Phase 2 (TDMA) trunked systems as well as conventional repeater configurations.
- Common Operating Picture Integration: Radio talkgroup state is overlaid on the shared incident map, linking voice communications with unit locations, CAD routing, and ETA data.
- Interagency Mutual Aid: Cross-jurisdictional talkgroup linking is managed from a single interface, removing the need for out-of-band coordination when agencies activate mutual aid agreements.
- Immutable Audit Trail: Every talkgroup assignment, affiliation change, and system alert is logged with a tamper-evident timestamp, supporting post-incident review and formal after-action reports.
- Role-Scoped Access: Talkgroup management actions are gated by operational role, ensuring that field supervisors, dispatchers, and communications engineers each have access appropriate to their function.
Use Cases#
- Unified Dispatch: Dispatchers manage digital radio talkgroups alongside CAD routing and ETA tracking on a single interface, reducing context-switching during high-tempo incidents.
- Interagency Communication: Fire, police, and ambulance services operating on separate P25 systems can be linked into a common talkgroup structure during major incidents, with the platform managing the affiliation logic.
- Post-Incident Review: P25 utilisation statistics and the audit log allow communications supervisors to reconstruct a full communication timeline for after-action analysis or formal inquiry.
- System Health Monitoring: Communications engineers monitor gateway connectivity, channel load, and unit registration state in real time, receiving alerts before degraded radio coverage affects operations.
- Training and Simulation: Talkgroup configurations can be replicated in a sandboxed exercise environment, allowing dispatchers to practise trunked radio scenarios without affecting live systems.
Integration#
The P25 module connects to P25 gateways and fixed network equipment controllers using standard P25 inter-RF subsystem interface (ISSI) and console subsystem interface (CSSI) protocols, requiring no proprietary vendor software on the platform side. Once connected, radio state feeds into the platform's broader communications interoperability layer, where it is correlated with CAD events, unit tracking data, and incident records to form a unified Common Operating Picture available to all authorised agencies in real time.
Open Standards#
- APCO Project 25 (P25 / TIA-102): The module implements the TIA-102 suite of standards for digital public safety radio, covering voice coding, trunking control, and data services.
- P25 Inter-RF Subsystem Interface (ISSI / TIA-102.BAHA): Used to link P25 radio systems from different manufacturers or jurisdictions into a single logical network without replacing existing infrastructure.
- P25 Console Subsystem Interface (CSSI / TIA-102.BAHA): Provides the standard interface between the platform's dispatch console and P25 trunked radio infrastructure.
- NENA i3 (NENA-STA-010): Where P25 audio is bridged into Next Generation 9-1-1 workflows, the module aligns with the NENA i3 standard for emergency services IP networks.
- IETF RFC 3550 (RTP): Real-time voice streams between radio gateways and the platform are transported using the Real-time Transport Protocol.
- OGC GeoPackage / GeoJSON: Unit location data associated with radio transmissions is exchanged in OGC-compliant formats for display on the Common Operating Picture.
- ISO/IEC 27001: Audit logging, access control, and key management for radio gateway credentials follow the information security management practices defined by ISO/IEC 27001.
Availability#
- Enterprise Plan: Included
- Professional Plan: Available as an add-on for organisations operating P25-connected communications centres.
Last Reviewed: 2026-05-26