Telephone Switch 1. supplier of ZTE, BUBUKAO, SANKI, MEDIA,JOYONG etc. 2.manufacturing years: 15 3.sample available Specifications:telephone switch,phone switch Mechanical life:500,000 cyclesElectrical life:200,000 cyclesRating:0.1A 125VAC Operating Force:45±5gfContact resistance:50mΩ MAX.Insulation resistance:100mΩ MIN.