This application note applies to MG815+, MG615+, MG415+, MG416+, MG815A, MG415A, MG416A, MG116A and MG602A modules produced by ZTE. This application note provides a specific description of the data business application process in the module. This application note is suitable for engineering and technical personnel using module products.
This manual describes how to use ZTE CDMA wireless modules (MG815+, MG615+, MG415+, MG416+, MG815A, MG415A, MG416A, MG116A, MG602A) for data‑business applications. It provides detailed steps for internal protocol stack operations, virtual online (VKL) handling, SMS and call processing, as well as guidance for external TCP/IP stack usage.
The document includes command reference tables, configuration examples, and hardware connection recommendations for reliable modem operation, including PPP link setup, TCP socket management, and DTR/DCD signal handling for proper disconnection. This manual is written in Chinese.
| Supported module models | MG815+, MG615+, MG415+, MG416+, MG815A, MG415A, MG416A, MG116A, MG602A |
|---|
Send the AT command `at+vklstatus=0` and the module will respond with `+VKLStatus:0` indicating virtual online mode is active.
Use the command `at+zpppopen`; a successful response is `+ZPPPSTATUS: OPENED`.
Set the business number to `#777` using the command `at+zpnum=#777`.