呼叫实例： 本控件基于ＧＳＭ Modem工作，不需要使用电话语音卡设备。不但具备普通电话语音卡功能，还具备手机短信收发功能。-Call Example: GSM Modem based on the work of the control without the use of telephone voice card equipment. Not only have the regular telephone voice card functions, also has mobile phone