dial pulse

基本解釋

Key Pulsing is a method of signaling by depressing keys on a line otherwise arranged for rotary pulse dialing.
按鍵脈沖是通過在一條線上按鍵而不是旋轉(zhuǎn)脈沖撥號的信令方法。
The Pulse property contains the command string used to instruct the modem to use pulse mode for dialing. Pulse dialing is necessary for phone lines that are unable to handle tone dialing. Example: P.
Pulse 屬性包含用于指示調(diào)制解調(diào)器用于撥號使用的脈沖模式的命令字符串。在電話線不能做按鈕撥號時(shí)必須使用脈沖撥號。例如： P。