本公司於民國89年申請進駐科學園區，一方面積極研發無線通訊相關產品，生產無線寬頻通訊及無線數據傳輸產品(Last mile connection)，並建立MMDS與WLAN產品行銷及通路，也替國外策略夥伴代工生產無線設備與射頻模組(美國DCSI公司)；其間依據原投資計畫而陸續完成開發及生產行銷各類產品，並積極佈建新產品的發展及新市場的開發。 95年起本公司參與工業局行動台灣計畫辦公室的活動與相關規劃，工業局亦希望本公司整合相關資源以便取得未來WiMax推動的經費。其間並與中華電訊科技股份有限公司合作打造Flying-J所需Downconverter樣品送驗測試。 97年，因應全球無線視訊系統數位化，同時把Field Strength Meter再經設計升級改為數位式產品，並送美國客戶驗證ok! 於97年下半年起，開始著手研發2.5GHz DOU Transceiver，於97年12月已試作出二台原型機，目前在測試調整元件，一旦完成即可開始送樣品予美國客戶驗證。

Sumtel Communications, Inc. designs, manufactures and sells brandband distribution networks products which include: Transceivers, Downconverter and control system for MMDS, Digital Signal Lever Meter...etc. Sumtel focuses on the solutions to our customers in providing "Last Mile Connection" for the common people and "SOHO" customers. With RF and digital communication experience engineering staffs in place, Sumtel prides itself on establishing close relationship with customers during development and production stages. Sumtel team has frequently demonstrated the ability to respond to meet the needs of the customers.