本文以介绍MSP430单片机和ISD4004语音芯片为基础，结合键盘控制器74c922和MSP430的外围设备设计了一台多功能电话留言系统。

This paper introduces MSP430 Ultra-Low Power Microcontroller and the ISD4004 chip. A multi-function telephone record system was designed with the two chips and 74c922 keypad encoder IC.

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这种型号同时具备电话机和传真机的功能。

This model combines a telephone and fax machine.

《牛津词典》

也就是说，事实上唯一给我们家里打电话的人是我们婴儿潮世代的父母。所以我们会玩一个游戏，在拿起电话之前猜是谁在打电话（使用来电显示功能会让游戏失去乐趣）。

That said, to be honest the only people who ever ring our home phone are our Baby Boomers parents, to the point where we play a game and guess who is calling before we pick up the phone (using Caller ID would take the fun out of it).

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