A repeater or signal booster is a device used for boosting the signal from the cell tower. It works by receiving the signal outside, amplifying it and rebroadcasting it in an area. It also amplifies the signal from the cell phone and sends it back to the cell tower. It has 3 components:
*Actual equipment may vary.
Repeaters are considered illegal when they are imported into the country without permit and are unauthorized for use by the NTC.
Under NTC Memorandum Order No. 01-02-2013, the sale, purchase, importation, possession or use of cellular mobile repeaters and portable cell sites are illegal. Only licensed CMTS operators, the NDRRRMC and other government agencies involved in national security or safety, authorized by NTC, are authorized to purchase, import, possess and use such devices.