Radio over IP
Radio over Internet Protocol, or RoIP, is similar to VoIP in that push-to-talk voice transmissions are converted to internet protocol (IP) packets and delivered from point to point over IP networks. The ability to route push-to-talk radio traffic over an IP network has had a far reaching impact on the operational capabilities and effectiveness of defense organizations, Federal and local government agencies, including public safety first responders, as well as commercial enterprises that rely on push-to-talk radio as a primary communications technology. RoIP allows responders and other radio users to extend the reach of their systems and other devices outside their usual geographic boundaries to include any authorized party.
By making IP a common transport mechanism for all types of voice traffic, the type of system that sends or receives voice traffic becomes immaterial.
Simply put, RoIP enables fully transparent communications among multiple radio users, between new and legacy radio systems, across many frequencies, and with any other connected communications device.
With RoIP, at least one node of a network is a radio connected via IP to other nodes in the radio network. The other nodes can be push-to-talk radios, but could also be telephones, mobile phones, computers or any other IP accessible communications device. RoIP can be deployed over private networks of wireless base stations, as well as the public Internet.
IP networks have become the standard for linking communications. From a private local area network in an office to a wide area network spanning branch offices to the public internet, IP is the common protocol that ties communications together. RoIP creates a common transport for disparate devices. RoIP solutions convert a wide variety of over-the-air and wired communications protocols into voice over IP, and then manage connections and call groups dynamically, depending on the emergency.
Because no new radio equipment is required, RoIP is a fast, easy, and affordable solution to communications
The US Departments of Homeland Security and Commerce state that advanced technologies such as IP-based software solutions should be considered when requesting funds for State interoperability plans and that fund requests should not be limited to the purchase of new radios.


