Support & Customer Service

Support Services:

Supporting our customers and offering the very best customer, engineering, technical, and training services are integral to the values we hold at Sumitomo Electric Lightwave. Our customers’ satisfaction of our products, solutions, and services is our number one priority.

Customer Service

Whether you have a question, require a quote, or need information, our customer service staff is ready to assist you.

Phone: 800-358-7378 and ask for Customer Service

Fax (919) 541-8265


Fusion Splicing On-Time Technical Center

For your Sumitomo Electric Fusion Splicing needs and equipment inquiries, we offer the industry’s best On-Time Technical Center service facility in the industry with the fastest typical 1-day turnaround times and 24×7 technical assistance… a quality standard that reflects our technicians’ commitment to you and the job you need to get done.

Please ask about our exciting fusion splicer rental program.

Phone: 888-SPLICER (888-775-4237) Available 24×7


EPON Product Support Center

Sumitomo Electric has talented EPON and DPOE product support engineers on hand throughout the US to provide 24/7 assistance should the need arise.

Visit the EPON Product Support Page

Sumitomo Electric Lightwave Engineering Services

Our Engineering services are provided by one of the most experienced teams of engineers and technicians in the industry. Sumitomo Electric Lightwave’s engineering professionals are highly educated and field-experienced, providing services that respond to our customers’ needs today with proactive readiness for tomorrow’s network challenges.

Optical Cable Engineering Services and Training

Our outstanding engineers are ready to work with you on design, products, and solutions for your particular applications and needs or to answer any of your technical questions. You may contact our engineering department for your hands-on training needs, as well, and they will customize an onsite training program at your facility to accommodate your specific needs.

Phone: 855-412-9838


Fusion Splicing Engineering Support and Training

For any questions or needs for application engineering support for our fusion splicers, precision tools, and related products, our fusion splicing experts are ready to help. Comprehensive hands-on field installation training on Fusion Splicing and Connectivity is available and can be arranged at your location.

Phone: 855-412-9838


Optical Network Products Engineering Services and Training

Our expert engineers offer design, technical, implementation and any assistance you need for our optical network products and data center solutions, including customized hands-on product and installation training.

Phone: 855-412-9838


FutureFLEX Air-Blown Network Solutions:
Engineering Services and Training

Please view: FutureFLEX Training & Support

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