Wait for dial tone before dialing ~ ~ Prevents dialing until modem receives a dial tone .

拨号前等待拨号 音~~调制解调器收到拨号音后再开始拨号。

If your phone line only allows pulse dialing rather than tone dialing check this box .

脉冲寄存器脉冲计数器如果您的电话只支持脉冲 拨号，请选中下面的选项。