This document is a user manual for the AT based SMS protocol between DTE and Modem, provided by AnyDATA. It explains the process of sending and receiving SMS messages, as well as the related AT commands and protocol formats. It also provides the command set and output format for the SMS interface. The document is a part of AnyDATA's wireless data solutions.
The document provides a detailed description of the short message service (SMS) protocol used between a data terminal equipment (DTE) and AnyDATA CDMA modems. It explains the AT command set for transmitting, receiving, storing, and deleting SMS messages, including handling of Unicode conversion and error conditions.
Key sections cover the SMS transmission flow, reception flow, a full list of AT commands (e.g., AT+CMGS, AT+CMGD, AT+CMGL, AT+CMGR), response codes such as +SMSS:3, and troubleshooting tips for common issues. This manual is written in Chinese.
Use the AT+CMGS command to transmit the message.
The AT+SMSD command removes all stored messages.
Use the AT+CMGL command to list stored messages.