ALMR supports various gateways that can connect disparate systems together.  This product, used to be known as a “Motobridge” is no longer supported by Motorola.  While replacement products are available, gateways provide limited interoperatbility between radio systems, typically limited to voice-only transmission.   Using an ALMR radio on the ALMR system provides full interoperability which is the recommended goal of the Federal Department of Homeland Security (DHS).