EF Johnson Technologies

P25 Interoperable LMR

The Project 25 suite of standards involves digital Land Mobile Radio (LMR) services for federal, state, and local public safety organizations and agencies. P25 is applicable to LMR equipment authorized or licensed, in the United States, under National Telecommunications and Information Administration (NTIA) or Federal Communications Commission (FCC) rules and regulations.

EFJohnson Technologies provides P25 compliant two-way radios and trunked and conventional communication systems for law enforcement, fire fighters, EMS, and the military. We have more than a dozen years of interoperability experience - we were one of the first companies to be fully compliant with the Project 25 interoperability standard, and remain a leader in the ongoing evolution of the P25 suite of standards. Our portfolio of digital and analog solutions assists in effectively and affordably managing the transition to digital P25 systems.

Facts about EFJohnson and Project 25:

• We are one of the few suppliers of trunked and conventional Project 25 compliant infrastructure systems.
• Every EFJohnson digital radio ships with the AMBE+2 Vocoder, which provides outstanding voice quality for public safety applications. Click on the Click to Listen Now links below and hear the difference!
• Our products have been in compliance with Federal interoperability standards for more than a decade, and have passed numerous interoperability tests on government facilities, in independent laboratories, and even at the headquarters of our biggest competitor.
• We have been a key participant in successful Project 25 Inter RF-Sub-system Interface (ISSI) Multi-Vendor Interoperability Demonstrations at the 2007 and 2008 APCO International conferences. ISSI is a significant milestone in wireline interoperability. The P25 ISSI interface will enable two or more disparate, trunked, P25 networks to be connected at the network layer. It will provide roaming across multiple networks while enabling dispatchers to monitor operations and communicate with users outside of their coverage areas.