短信群发系统是针对于企、事业单位、团体开发的一套短信收发系统，直接用短信群发系统基于GSM/GPRS/CDMA MODEM的短信收发系统的发射器和移动（或联通）公司提供的手机卡短信服务功能，来收、发企业相关信息-Short Message System is targeted at enterprises, institutions, groups developed a set of send and receive text messages, phone card directly using the Short Message System (or Unicom), the transmitter and the mobile-based messaging system in the GSM/GPRS/CDMA MODEM SMS service to the sending and receiving business-related information