I. Project Background
Communication security is the lifeline of national security. Faced with an increasingly complex international situation and cyberspace security environment, a unit in Inner Mongolia, in light of its development and work needs, required the deployment of a professional IP communication solution. The solution was to ensure the safety, stability and reliability of its daily communication while enabling encrypted calls and call recording, with all hardware meeting the requirements of independent innovation – namely, fully localized production. After a rigorous selection process, the unit ultimately chose to cooperate with our company, expecting us to build a localized, highly confidential and highly reliable IP communication system solution for it.
II. Solution
Following multiple communications with the client, we finally adopted the following solution to meet their requirements:
- Comprehensive independent controllability: An IP communication server with the Kylin OS is deployed at the core, equipped with localized components such as Zhaoxin CPUs. The server is operated in a physically isolated dedicated network environment, fundamentally preventing external cyber attacks.
- Voice encryption: End-to-end voice encryption technology is applied to all communication data to ensure data security.
- Dual-server hot backup: Two servers are deployed for dual-server hot backup to guarantee the reliable and stable operation of communication services.
- Call recording: An IP recording server is deployed locally to automatically record all calls within the system and implement automatic backup, ensuring traceability of all call records.
III. Network Topology

IV. Conclusion
The successful launch and stable operation of the system have won high praise from the client unit: the security and reliability have reached a new level, building a security protection system that achieves “impenetrable access, unstealable data, unintelligible content, unalterable records and irrefutable accountability”, which fully meets the unit’s requirements for communication security.
V. About XUNMEISD
Founded in 2005, Beijing XUNMEISD Information Technology Co., Ltd., abbreviated as XUNMEISD, is an active participant and promoter in the historical process of informatization and digitalization in China. Committed to the innovation and application of information and communication technologies, XUNMEISD has vigorously advanced the development of IP converged communication, emerging as a pioneer and trailblazer in the application of converged communication in China.
Since its establishment, XUNMEISD has been serving integrators of central and local state-owned enterprises, weak current engineering partners and regional industry channel partners, including Taiji Computer Corporation, China Soft International, Digital China, Aerospace Changfeng, and various institutes of China Electronics Technology Group Corporation.
With IP converged communication technology at its core, XUNMEISD provides intelligent products and service solutions for various industries including governments and public institutions, the military, banks and financial institutions, enterprises, hotels, hospitals, and education institutions. Having served government and enterprise clients for nearly 20 years, XUNMEISD has earned market recognition with high-quality products and services. Its clientele covers national ministries and commissions, provincial, municipal, district and county governments, central state-owned enterprises and some Fortune 500 companies. To date, XUNMEISD has served more than 10,000 government and enterprise clients, including State Grid Corporation of China, the Chinese Academy of Sciences, China National Petroleum Corporation, China National Offshore Oil Corporation, Shanghai Merchant Ship Design and Research Institute, Institute of Electronic Engineering of Tsinghua University, Tsinghua University High School, Gansu AVIC Tourism, Sodexo, Dingcheng Life Insurance, ByteDance, Guazi Used Car, New Oriental, Bianlifeng, Hanergy Group and Poly Property Services.
XUNMEISD’s self-owned brand products mainly include IPPBX (IP Telephone System), SIP Scheduling System, Call Center Customer Service System and Broadcast Scheduling System. Its terminal products cover IP phones, explosion-proof video phones, call center headsets, intercom terminals, SIP sound columns, SBC Session Border Controllers, voice gateways, handheld wireless intercom terminals, trunking gateways and more.