... digital in left hand means the just called number,the serial has feature of exactly extinguishing the ... to customers’call,after set time ending,the number can be automatically or manually deleted. 02 ... 05 The display time length of the call number can be set arbitrarily The display time length ... number:3pcsWith pager quantity : 180pcs Letters show: A,B,C,D,E,F,H,P(80 in English) Wireless Calling System ...