Telephone wire : Flat--2c, 4c, 6c ,8c,10c . Conductor : 7x0.12cu, or 7x 0.10mm, or 7x 0.16mm. Color :Ivory ,white ,black . Telephone wire :2c , 4c, 6c , 8c ,12c...7X0.12mm copper /ccs or 7*0.16mm .Color : Ivory ,white ,black in compliance with customer Telephone wire