现在市场上销售的电话机五花八门,让人目不暇接。我们要得到一部好的电话机,就需要先了解它们的各种功能,再按自己的需要来选购一部满意的电话机。现将常见的电话机的功能叙述如下: 脉冲拨号话机:这是过去用得最多的话机,其拨号信号方式是计数直流脉冲式,过去所用转盘话机 Now on the market a variety of telephone sales, people dizzying. We need to get a good phone, you need to understand their various functions, and then according to their own needs to buy a satisfactory phone. Now common phone features described below: Pulse dial phone: This is the most used in the past the phone, the dial signal is counting DC pulse type, in the past used dial phone