长途: long-distance业务: vocational work; professiona ...类别: classification; category; ge ...长途业务: trunk service业务类别: class of business; service class; service type长途业务记录: toll traffic ticketing system国内长途业务: dld; national trunk traffic自动长途业务: automatic trunk service保险业务类别: cla of i urance busine; class of insurance business通信业务类别: traffic class业务类别标识: service identification用户业务类别: subscriber service class长途业务话务员: toll service operator国际长途业务会议: international teletraffic congress; itc长途干线业务长途业务: trunk line service业务等级业务类别: class of service cos长途通信, 长途业务, 干线通信: trunk line service电话分机业务类别: extension service class国际用户业务类别: international user class of service业务类别,服务等级: cos class of service用户业务类别间的互通: interworking between user classes of services服务类别: class of service; cos classes of service服务类别表: class of service table; cos table劳务类别: labout category事务类别: transaction class