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.

Our Commitment to Quality

Quality Certifications

ISO Certifications

ISO 9001:2008 Certificate
ISO 9001:2008 Certificate
ISO ISO 14001:2004 Certificate
ISO 14001:2004 Certificate

TEMS holds ISO 9001:2008 and ISO 1400:2004 certification, audited by American Systems Registrar.

The scope of TEMS’s registration includes network and service testing of mobile wireless networks. This certification covers nine of TEMS’s sites and functions under one quality management system, and promotes a common process infrastructure worldwide.

This approach demonstrates TEMS’s commitment to continually providing opportunities for better quality, satisfaction, environment, and health and safety to its own employees, customers, suppliers, partners, and society as a whole.

Code of Conduct

Code of Ethical Business Conduct

The TEMS Code of Ethical Business Conduct contains binding and worldwide Principles covering all business activities in the area of anti-corruption, labour, human rights and environment. They apply to each and every TEMS employee throughout the world. This Code is supplemented by additional directives and guidelines applicable for all TEMS employees worldwide.

Our 10 Ethical Business Conduct Principles

  • We do not tolerate any form of corruption including bribery
  • We comply with anti-trust law
  • We follow the insider trading rules
  • We know our business partners
  • We adhere to export restrictions
  • We protect our business property and trade secrets
  • We respect the others
  • We lead by example
  • We are loyal and avoid conflicts of interest
  • We value the environment, health and industrial safety
Code of Ethical Business Conduct


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:


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