This manual mainly introduces the AT commands of Huawei GTM900-C wireless module
The manual describes the AT command set used to configure and operate the GTM900-C wireless module. It includes command syntax, parameter details, and example sequences for common tasks such as PDP context setup, TCP/IP connections, and data transmission.
Additional sections cover error codes, terminal display handling, and advanced features like TCP/UDP configuration and transmission parameter tuning. The document is intended for developers and engineers integrating the module into their solutions.