与相关机型产品列表 
HJK-120普通z型集团电话交换机(原HJD-80型/HJK-20/120K型)
HJK-120普通z
HJK-120D集团电话交换机
HJK-120D集团
HJK-120E型集团电话
HJK-120E型集
HJK-120(208)小型电话交换机
HJK-120(20
HJK-120F2/F3程控电话交换机
HJK-120F2/
HJK-120S电话交换机
HJK-120S电话
HJK-120S2型S3型集团电话交换机
HJK-120S2型
HJK-120F5型程控电话交换机
HJK-120F5型
HJK-120S特殊型程控电话交换机(矿山遂道)
HJK-120S特殊
HJK-120SPC酒店电话交换机
HJK-120SPC