Infocomm Development Authority of Singapore (IDA) is the agency that regulates wireless and telecommunications regulations in Singapore. According to the Telecommunications Act cap.323, certain wireless and telecommunications products must obtain IDA approval before entering the market. This basically includes all wireless communication products. The IDA equipment registration scheme includes the following three types of certification, each type of certification includes the following products. 1. Enhanced Simplified Equipment Registration (ESER), applicable to complex multi-line equipment or short-range/low-power ISM band equipment (for a detailed list, see Appendix B, Table B.1 of the Telecommunications Equipment Registration Guide). This includes PABX, TKS, ISDN equipment, DECT phones, WLAN, BT, RFID, wireless microphones, as well as radio monitoring, remote control, and telemetry equipment. 2. Simplified Equipment Registration (SER): Cellular (2G/3G/GMPCS), mobile terminals, broadband access equipment (ADSL and cable modems). 3. General Equipment Registration (GER) involves any equipment type mentioned in Appendix B, Table B.1 of the Telecommunications Equipment Registration Guide, as well as land mobile radio receiving devices, mobile base stations, UWB and WBA equipment, and short-range devices that mandatorily require an IDA license.