... Cat6,FTP,SFTP,Outdoor Shield,Patch Cord. 4 cores telephone wire1.Conductor:Adopt soft round copper wire ... telephone cable,Type for HYV,HYY,HYYCCable Construction2c,4c,6c,8cCable Cores2,3,4 cores for optionalConductorCCS, ... 10Jacket ColorDifferent colors for Optional-------------------------------------------------------------------------------------------------------------- 4 cores telephone wire