Project 25 Network Interoperability Solution Brief

This solution brief outlines the Project 25 (P25) Network Interoperability and the role of the Inter RF-Subsystem Interface (ISSI) in enhancing communication among public safety entities. It describes how ISSI technology allows radio users to connect across multiple P25 networks, facilitating effective communication during planned events and emergencies. The document details the importance of interoperability in ensuring first responders can coordinate their efforts, especially when working in different jurisdictions. It explains that ISSI enables agencies to interconnect P25 trunked systems, allowing personnel to maintain contact with their home networks even when deployed elsewhere. The brief also highlights the features of ISSI, including support for different frequency bands, manufacturers, and user databases, as well as the ability to establish interoperability talkgroups. Additionally, it discusses the process for agencies to connect their systems using ISSI gateways, emphasizing the collaborative nature of establishing interoperability for enhanced public safety communication.