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For CRITICAL service events – please call following numbers to speak with a Sonus TAC engineer:

  • US/EMEA TAC Toll Free: +1 888-391-3434  (+1 978-614-8589 - Direct) or (+420-222-119-604 - Direct)
  • Japan TAC: 81-3-5457-8250
  • Australia Toll Free: 1-800-734-998
  • SEGway Signaling Systems, USP, SP2000 and NSM Emergency Customer Support: +1 613-287-0176 or +1 613-287-5379

Performance Technologies MPS products are now sold and maintained by Sunhillo Performance Technologies (SPT).  Please click on the following website link for all product information and support.

Website link: www.sunhillo.com

  • SPT Technical Support Phone Line: 858-627-1715
  • SPT Technical Support email: sptsupport@sunhillo.com


Disclaimer: By using this system, you acknowledge that you are in compliance with your company’s data protection policy and that by sharing data you are giving Sonus explicit permission to use such data in order to provide support to Sonus products including potentially sharing data with necessary third parties.



  • MathWorks estimates that through the automated provisioning and call routing features of the Sonus solution, the company has freed up more than 250 IT staff hours per week for more important projects.

    MathWorks is the leading developer of mathematical computing software for engineers and scientists. Founded in 1984, MathWorks employs 2800 people in 15 countries, with headquarters in Natick, Massachusetts, U.S.A.
  • The industry-leading performance and scale of Sonus' SBC 5100 allows us to maintain a competitive edge in the market while delivering exceptional customer service. 

    Smart Tel is a major player in the Singapore telecommunications industry and aims to develop its global presence with new offices in Australia, Thailand, Indonesia, Philippines, India, South Africa, the US and the UK, with cost effective, easy-to-use and scalable telephony solutions.
  • We wanted to work with an industry-leading SBC vendor and our market analysis indicated that Sonus was the clear choice for this partnership.

    (GCS) is a software company founded in 2006 by Neal Axelrad and Jay Meranchik. GCS' goal is to be the best company in the marketplace. We are privately held and have offices in New York & New Jersey USA.
  • Sonus made the deployment, integration and migration to Microsoft Lync easy. 

    We are experts in identifying and delivering flexible communication solutions that scale and adapt to your business demands, empowering your business to do more, faster and with less effort and cost.