The Internet
You Truly Deserve
RC Yulo Telephone System, Inc. (RTSI) delivers fast, stable, and
affordable fiber internet designed for modern homes.
The Internet You Deserve
A Local ISP You Can Trust
RTSI is proudly based in Binalbagan, Negros Occidental, serving the community with dependable internet and responsive local support. Unlike large national providers, we understand the needs of our customers because we live and work in the same area.
When you call RTSI, you’re not dealing with a distant call center—you’re talking to a team that’s ready to assist you quickly and personally.
Built for Homes, Ready for Business
From everyday browsing to bandwidth-heavy applications, RTSI’s fiber internet is designed to handle modern digital life. Whether you’re a student attending online classes, a professional working remotely, or a family streaming on multiple devices, our network delivers the speed and stability you need—without compromise.
Our fiber infrastructure is built to scale, ensuring consistent performance today and future-ready connectivity tomorrow.
Simple Plans. Powerful Performance.
from basic home browsing to heavy streaming and multi-device households.
Why Choose RTSI?
High-Speed Fiber Internet
Enjoy consistent, high-speed fiber internet suitable for streaming, gaming, video calls, and online work.
Local Customer Support
Get assistance from a team that’s based in your community and understands your needs.
Reliable Connection
Our fiber-to-the-home network ensures better stability and fewer interruptions compared to traditional connections.
Future-Ready Network
Scalable plans that grow with your household or business demands.
Transparent Pricing
What you see is what you pay—no hidden charges or surprise fees.
Ready for Better Internet?
RTSI is committed to keeping Binalbagan connected—today and in the future.