Marbel Telephone System

Marbel Telephone System, Inc. (MTSI) is a company that provides consumers with Telecommunications and Broadband Solutions for their business and personal needs. It was established in Koronadal, South Cotabato, Philippines as a sole proprietorship business owned and operated by Mr. Antonio C. Yap in 1965.The Company is proactively involved in the progress and development of the province of South Cotabato since February 1995 when it extended its operations covering the other eleven municipalities aside from Koronadal. This has not only accelerated the delivery of basic data and telecommunication needs to its populace, it also gave further advancements among socio-economic activities.