程序自动拨打电话，并在电话接通后，给对方播放语音提示，返回用户的按键信息。 适合做电话催缴费系统，欠费通知系统，语音通知系统。-Automatically dial the phone and the phone connected, to each other play voice prompts, to return the user' s keystrokes. Telephone reminders suitable payment systems, arrears notif