A PoC radio (short for push to talk over cellular radio[2] ), also known as PTToC radio ,[3] is an instant communication device that is based on the cellular network .[4] It is a radio device that incorporates push-to-talk technology into a cellular radio handset.[5] It allows users to communicate with one or more receivers instantly, [6] in a half-duplex mode .[7]
Although a PoC radio is a walkie-talkie -like device, [8] there are substantial differences between them.[9] Compared to the latter, the former has a wider range of channels, covers a wider area, and does not require a license to transmit.[9] In addition, a PoC radio supports advanced functions, such as, video calls , multimedia messages , GPS location tracking, and emergency notifications. [10]
PoC radios are widely used in the industries of private security , logistics , hospitality , and rescue. The representative manufacturers of such equipments include Hytera [11] and ToooAir.[12]
History
The concept of PoC was introduced by U.S. telecommunications company Hytera in 1987.[13] The first commercial use of PoC radios was also started by the company in 2002.[14]
In June 2005, the Open Mobile Alliance rolled out an approved standard called "PoC 1.0".[15] In April 2020, Hytera presented a PoC radio named PNC550, equipped with a 5-inch touchscreen that supports full operation using gloves.[16]
References
^ Longxin Lin, Baorong Du, Shan Zhou. Longxin Lin; Baorong Du; Shan Zhou (4 November 2010). "The network model and routing algorithm for scalable PoC system" . 2010 International Conference on Computer Application and System Modeling (ICCASM 2010) . Institute of Electrical and Electronics Engineers . doi :10.1109/ICCASM.2010.5620513 . ISBN 978-1-4244-7235-2 . S2CID 16470544 .
^ Lakisha Davis. "9 Benefits of the PoC Radio You Need to Know" . Metapress . November 13, 2020. Archived from the original on 2022-08-25.
^ Cooley, Brian (May 23, 2019). "With a black SIM, first responders' calls go ahead of yours" . CNET . Archived from the original on July 25, 2021.
^ Li Hongliang, Li Lifu, Wang Yu. "An End-to-End Encrypted Scheme for PoC Based on Cellular Network" (PDF) . ProQuest . 17 December 2014. Archived (PDF) from the original on August 29, 2022.
^ Ray Horak. Webster's New World Telecom Dictionary . John Wiley & Sons . 2008. pp. 380–. ISBN 978-0-471-77457-0 .
^ Mooi Choo Chuah, Qinqing Zhang. Design and Performance of 3G Wireless Networks and Wireless LANs . Springer . 2005. pp. 321–. ISBN 978-0-387-24152-4 .
^ Pierre Lescuyer, Thierry Lucidarme. Evolved Packet System (EPS): The LTE and SAE Evolution of 3G UMTS . John Wiley & Sons . 2008. pp. 282–. ISBN 978-0-470-72366-1 .
^ Gerardo Gomez, Rafael Sanchez. End-to-End Quality of Service over Cellular Networks: Data Services Performance Optimization in 2G/3G . John Wiley & Sons . 2005. pp. 88–. ISBN 978-0-470-01586-5 .
^ a b "Portable Two-Way Radio: PoC Radios vs. Walkie Talkies" . Express Digest . October 15, 2020. Archived from the original on October 29, 2020.
^ "IDIS acquires KT Powertel to extend secure mobile comms and IoT capability - Security and Fire News and Resources" . IFSEC Global . February 5, 2021.
^ Fox, Jena Tesse (May 26, 2022). "Hytera US launches new communications device" . Hotel Management .
^ Sharon O'Keeffe (November 28, 2017). "ToooAir release "push to talk over cellular" (PTToC) transceiver" . Queensland Country Life . Archived from the original on August 30, 2022.
^ Ty Estes. "The push-to-talk ecosystem: Cellular, Wi-Fi, and unified platforms" . Security Magazine . January 26, 2021. Archived from the original on 2022-08-24.
^ Thomas Plevyak, Veli Sahin. Next Generation Telecommunications Networks, Services, and Management . Wiley . 2011. pp. 157–. ISBN 978-1-118-21142-7 .
^ Stephen Lawson (June 21, 2006). "Cell 'walkie-talkie' standard approved" . Computerworld .
^ "Hytera new solution assists COVID-19 frontliners detect abnormal body temperature" . Borneo Bulletin . April 14, 2020.