This manual describes the AT command interface of ZTE MC8331A module, including standard CDMA voice and data applications, as well as ZTE proprietary instructions.
The document provides a complete reference for the AT command set used to control the ZTE MC8331A module. It includes background information on CDMA, a detailed list of commands, and example usage for common operations such as voice calls, SMS, and TCP/UDP communication.
The manual is organized into sections covering command categories, command syntax, response formats, and practical application examples. It also lists the module's default serial port settings and how to modify them. This manual is written in Chinese.
| Parity | None |
|---|---|
| Flow control | Hardware (CTS/RTS) |
| Baud rate | 115200 bps |
Use the +CGMR command, which returns the module software version.
The +IPR command sets the module's UART baud rate.
Use the +CMGS command to send an SMS.
The +CSQ command reports the current signal strength.