Raytheon Company's new interoperability server includes advanced features to help public safety agencies communicate with one another, the company announced at the International Wireless Communications Expo. The features include the ability to bring in P25 radio users over Internet Protocol (IP), and to connect 4G/LTE (Long-Term Evolution) system users by a Bluetooth link to a system handset. Both features include the ability to transfer data. Raytheon's P25 ISSI capability moves the radio gateway concept beyond the donor radio approach, bringing in P25 users directly via IP. P25 talk groups can be dynamically linked to any of the member agencies of the interoperability system, including other P25 talk groups. The Bluetooth feature solves the interface quandary created by the increased use of LTE handsets for public safety communications.