Inter-RF Subsystem Interface (ISSI) Gateway
The Inter-RF Subsystem Interface (ISSI) Gateway provides TIA-standardized network-level communication between Project 25 (P25) radio systems regardless of manufacturer, allows authorized radios to roam between P25 systems, and prevents ID overlaps by assigning temporary unit and group IDs to roaming users. ISSI Gateway Overview The ISSI Gateway is based on the Inter-RF Subsystem Interface standard,…