HONGKONG KOON TECHNOLOGY LIMITED is dedicated to engaging in R&D, manufacturing and sales of various types of exclusive emergency communication system and industrial phone. Products include voip intercom,voip phone system ,blue light system ,emergency outstation telephone,industrial SOS IP telephone,help point,school intercom, emergency call box as well as large network management command systems such as TR069,SNMP Modbus TCP protocol SIP applied in metro, tunnel, airports, petrochemicals, metallurgy, nuclear power, marine,ship building, bridge,mine,and special industry. Based in Shenzhen, the company is a state-level technology enterprise which is certified to be a high-tech one owning high-tech products. The registered capital of the company is 10 million US Dollar. We established our R&D center,machining spraying plant, integrated manufacturing base in Shenzhen. The factory has a large area of 8,500 square meters. The corporation strives for building up KNTECH to be a top international brand. We are the only Asian enterprise passing IEC, IECEX and EN50121 authentications in the industry. Our various products received the authentications from German TUV, European CE, Us FCC, ETL,PART68 as well as I SO900 .
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Solution
There are two types of SIP proxy servers: 1) Stateless proxy server: A simple forwarding function that selects the destination and route of forwarding by requesting information. Messages are discarded as soon as they are forwarded. 2) Stateful proxy server: records incoming requests and sent request information (especially transaction status) and uses this to control future message processing. It also has a fork function for messages.
We will tell you what is the ratings of protection of the telephone, how to test the ratings of protection of the telephone, how to choose the right ratings of protection telephone.
The ip telephone system is a modern, telephone communication system based on the ip network and the Internet Voice Protocol (VOIP).
News
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In order to ensure the successful operation of the Sydney Metro, the Sydney Metro Engineering Bureau invited our company's advanced projects to assist in the commissioning of the subway passenger emergency intercom system.
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In December 2018, during the expansion project of DEH power plant, KNTECH provided 180 sets of waterproof telephone knsp-18 and waterproof acousto-optic bell ringing device D13. The waterproof telephone and waterproof acousto-optic bell ringing device successfully solved the poor communication caused by the damp, rain and other conditions of the power plant.
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On May 20, 2019, our wireless intercom KNZD-45A GSM passed the US FCC certification. FCC certification covers more than 50 states, Colombia, and the United States, to ensure the safety of radio and wire communication products related to life and property. This certification is the highest standard for radio product testing.
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