目前，这个协议栈能完成如下的功能：

9 中、英文短信发送

9 中、英文短信接收

9 短信删除

9 振铃后挂断来电并且反馈短信到来电号码

9 普通 AT 命令发送

注意：目前，中文短信编码不能通过单片机实现，只能通过查表的方式将某些短信编码

存储在单片机中。 -Currently, the protocol stack to complete the following functions: 9, 9 in English SMS, English SMS deleted text messages received 9 9 calls and hang up after ringing the feedback message to the caller number nine common AT commands sent Note: At present, Chinese SMS MCU can not be encoded only by the way some of the message look-up table stored in the microcontroller code.