About TEMS™

TEMS™ (Formerly Ascom Network Testing) offers the TEMS portfolio, a complete set of trusted solutions for drive testing, analyzing, benchmarking, and monitoring mobile network performance.

TEMS is the wireless communications drive-test market leader with nearly 40% market share. With 650+ customers in more than 130 countries, including the top 20 mobile operators, major infrastructure suppliers, and service providers, TEMS is the world’s most trusted technology for deploying, monitoring and assuring quality of service for broadband wireless networks.


Partner Organizations

Our commitment to research and development

TEMS maintains a commitment to research and development that significantly exceeds industry averages.

In addition to holding dozens of patents, TEMS plays a formative role in next-generation technology through its participation on international standards bodies and its work authoring papers and standards related to voice and video service QoE evaluation. TEMS is proud to be a member, or have team mates who are members of, the following organizations:

Further Reading

TEMS Insights

Check out TEMS white papers, webinars, eBooks, videos, newsletter, and blog to learn more about our products, our grasp of the industry, and the experience of our team members.


Trusted by the world’s leading
communications companies

  • Nokia
  • Ericsson
  • Vodafone
  • China Mobile
  • China Unicom
  • America Mobil
  • T Mobile
  • O2
  • Zain
  • MTS
  • Verizon Wireless
  • AT & T

TEMS™—now part of InfoVista

20405 Exchange Street
Suite 301
Ashburn, VA 20147

Global Sales Desk