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]
| Other name | PTToC radio |
|---|---|
| Type | PoC device |
| Core function | Push-to-talk[1] |
| Introduced by | Nextel |
| Communication mode | half-duplex |
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 edit
The concept of PoC was introduced by U.S. telecommunications company Nextel 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 edit
- ^ 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.