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    2. SST Honored as Most Influential Enterprise
      in 2023 Smart Operation and Maintenance Star List

      SST Passed the Authoritative SD-WAN Ready2.0 Certification with Upgraded Service Capability!

      Pursuit of Excellence! SST Awarded
      "2022 Company of Best Market Performance"

      Scaling New Heights, SST Was Listed among
      Shanghai Top 50 Internet Companies by Comprehensive Strength

      SST New Brand Logo and Slogan Unveiled

      Defending Cybersecurity Together for Digital Transformation

      Scaling New Heights: SST Honored May 17 Typical 

      Demonstration Case by Posts & Telecom Newspaper Again

      Tackling Difficulties and Winning Another Battleground

      The Official Website System of SST Successfully Passed the Level 2 Security Assessment

      Build on Past Achievements and Strive for New Progress

      Thoughts after Successfully Passing the Evaluation of Grade Information Security Protection Level 3 (S3A3G3) for Machine Rooms

      SST Wins Two Awards in 
      “2020 China Telecommunication Industry List”

      SST Empowers Digital Transformation with Commitment to Core Technologies

      Come to SST for the New Generation of Data Center

      SST Launches a New Era in 2017 after 17 Years of Perfecting

      SST was awarded the "One-Stop Solution Leading Enterprise" in 2017 and ranked among "China’s Top 100 Communications Equipment Technology Suppliers" once more

      SST became a member of the "China Cross-border Data Telecommunication Industry Alliance”, supporting the development of the cross-border data telecommunication industry in China

      About Us

      Shanghai Symphony Telecommunications Co., Ltd. (SST) was established in December, 2000 in Shanghai. The company was jointly invested by the China Telecom Corporation Limited, AT&T Corporation of the United States, and Shanghai Information Investment Inc. (SII) of the Shanghai Municipal government...

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