RADIO Solutions

RADIO (Walkie talkie) has been in the existence for many years and RAD Communication Systems Pvt.Ltd. started its business through this solution. RAD Communication Systems Pvt.Ltd. has been servicing various governments, Security and PSU’s through World-class products like Motorola and ICOM. Now RAD Communication Systems Pvt.Ltd. has focus into Digital radio and Tetra Market and also dealing with ROIP (Radio over Internet Protocol).

Radio over Internet Protocol

What is Radio over Internet Protocol?

Radio over Internet Protocol, or RoIP, is radio interoperability enabled through hardware devices and Software which leverage the universal     language of Internet Protocol (IP) to bridge voice communications Media. RoIP enables interoperable communications among existing radios,     between new and legacy radio Systems, across frequencies, and with any other connected communications device. Because RoIP is standards     based, it is device independent. This means that an agency is not restricted to Communicating within a single system or within proprietary radio  systems. Furthermore the end user Does not have to select a single type of device, but can speak using any device that is IP-based (or has a Gateway that will convert its language to IP) - be it a public safety radio, cell phone, or computer.

In addition to enabling “any media to any media” communications, IP-based radio interoperability allows Agencies to dynamically create talk groups remotely and in real time, on an as-needed basis for as short or as long duration as necessary. Regardless of the geographic location of the dispatcher or manager, End users on disparate communications devices may be patched together through a web-based Interface. Because end users can be on any type of device, they may be remotely located from the Scene and still patched in to the incident communications. And they can be assigned different rights Such as “listen only”.

How does it work?

User devices connect to base stations, and base stations Connect to IP gateways. At the IP gateway, software CODECs sample and transcode is converted into the special language of that device, enabling the various devices to talk to each Other. So, for example, a P25 public safety radio has its air Interface converted to IP passed along wires or fibre Optics to another gateway and converted into CDMA or GSM for cell phones. The ability for devices to speak to other devices is managed through a system of virtual talk groups. Software manages user access rights, talk controls, and Talk group membership. This allows for users to be added to, or removed from, a talk group in near real Time using a computer mouse and a simple drag and drop functionality. Because of the IP backbone, a User may be connected to a talk group regardless of their physical location.

Is it secure?

IP-based systems enable dynamic interoperability across disparate communications devices by securely linkingthe appropriate devices for the duration needed. Intelligent software allows those with authority to connect devices, monitor usage, assign privileges and monitor conversations. RoIP systems support High levels of security through encryption, user and device authentication, secure user login, and use. The security in the IP section of the communications doesn’t change whatever security there is in the over-the-air portion of communications.


What are the benefits of RoIP?


Internet Protocol-based radio interoperability provides a number of benefits to emergency  response Organizations. Some advantages enabled by RoIP include:
• Complete interoperability with current communications equipment, from P25 radios to legacy
Systems, across multiple frequencies.                                               
• Secure talk group connections between radios and any other communications device
Including land line phones and computers.
• Dynamically scalable communications platforms allowing users to control who is on talk
Groups assign listen-only privileges, monitor conversations and users present, and remove
Users from a talk group, all in real time.
• Geographically independent communications, with remote control over interoperable talk
Groups and the ability to join physically distributed users.
• Enriched media - such as images, and maps - delivered through IP enabled devices.


What are the caveats?


While traditionally achieving radio Interoperability meant buying a new radio System, RoIP separates the issue of Interoperability from the issue of new Equipment. With RoIP, users can connect nearly any communications device to any othercommunications device. However, RoIP is not a replacement for new radio Systems. It does not add coverage or handset features. IP-based systems should be considered part of your Emergency communications toolkit – not the whole thing.


How is RoIP related to Core Services?


RoIP systems use the IP and SIP standards, among others, so connecting competing systems is relatively easy if the agencies, CODECs, and gateway addresses are known. But with thousands of organizations with radio systems, where does this information reside? How do you connect with an organization you may not have known before the emergency occurred? Core Services are shared tools that benefit all emergency agencies by enabling interoperability across emergency response domains and jurisdictions. The two Core Services of Agency Registry and Identity Management store an agency’s contact information and the rules of who can link radio systems/form talk groups for what areas. By accessing the Core Services when an emergency strikes, different RoIP products (as well as Data communications products) can access the information they need to enable interoperable communications. Core Services is a new idea on which COMCARE and others are working.