The young man who has never sent a text message is definitely the protected rare animal. Today, Today's SMS has become an important means of communicating, which also contains huge market and economic interests, and the talents who have mastered SMS technology are also subject to talents. The pursuit of major companies is the dazzling star on the workplace. This article describes the principles and implementation methods of SMS. It has focused on the code of the SMS, the AT command, and the method of implementing serial communication with C #.
Foreword
At present, there are three ways to send text messages:
1, the gateway method: "Apply to the local telecommunications department, no additional equipment, suitable for large communication companies, like Huawei, proud, ZTE, Asia Letter, etc.
2. Terminal mode: It is to send a text message through a data cable to send a text message by means of settings such as GSM Modem (mobile phones that support AT instructions). To achieve this method, you must understand serial communication, AT command, SMS coding, decoding, which is also the focus of this article.
3, use some websites to achieve, simple, but the website is too high, the requirements for the network are also relatively high, very unsuitable for project development full text reading: C # Develop terminal SMS principle and method
