This standard presents the Telcordia and associated professionals generic testing criteria covering EMC and safety necessary for equipment reliability and safety in environment typical of that of a telecommunication service provider. It offers system level EMC creiteria to help avoid equipment damage and malfunction because of lightning, 60-Hz commercial power fault conditions, Electrostatic Discharge (ESD), Electrical Fast Transient (EFT), Electromagnetic Interference (EMI), operation in the presence of a dc potential difference, and operation in a steady-state induced voltage environment. This standard is applicable to wireless systems that provide fixed and/or mobile services that are installed in locations with telecommunications network equipment. GR 1089 CORE does not apply to systems where antenna is inside a facilitate or handheld devices. This standard can be purchased through the Telcordia / Ericcson website. Much electrostatic Discharge (ESD), Electrical Fast Transient (EFT), Electromagnetic Interference (EMI) testing references corresponding International Electrotechnical Commission standards with modifications.