callern.打电话的人；来访者；呼叫者callery pear fruit鹿梨Calleria mellonella大蜡螟caller ID detection来电显示caller ID telephone来电显示电话机caller waiting tone主叫等待音caller-pays system主叫方付费caller identification主叫用户识别caller number display来电显示caller's access right(美)电话点播节目caller rs input buffer调入程序输入缓冲器