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电话机上“IP”键的设置,主要是为了方便用户拨打电话卡号码。随着通信智能网的推广,运营商开办了不少是话卡业务,如IP卡、300卡、200卡等都是电信部门为开通拨打国际、国内长途电话而采用的一种专用功能卡。用电话卡拨打国际国内长途电话具有比普通电话费用低廉的优点。如使用IP电话卡打长途,电话费为:国内长途每分钟0.30元,国际长途为每分钟4.8元。但由于使用电话卡拨打电话时输入程序号码较麻烦,如需分别按照“输入码”、“语音提示”、“卡号”、“密码”排列顺序输
Phone “IP” key settings, mainly for the convenience of users to dial the calling card number. With the popularization of communication intelligent network, operators set up a lot of card business, such as IP card, 300 card, 200 card and so on, are all the special function cards used by the telecommunication department to open and make international and domestic long-distance calls. Calling international and domestic long distance calling cards has the advantage of being cheaper than regular calls. Such as the use of IP phone cards to fight long-distance, telephone charges: domestic long-distance 0.30 yuan per minute, international long-distance 4.8 yuan per minute. However, due to the inconvenience of entering the program number when making a call using a calling card, if the user wants to enter the program number according to the input code, voice prompt, card number and password