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


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.

FutureFLEX Air-Blown Network Solutions: Engineering Services and Training

Please view: FutureFLEX Training & Support