TCP/IP testing with Quectel Modules

Steps to test TCP/IP with Quectel Modules

  • Verify that the device is registered with the network provider
  • Configure the APN for a PDP context usingĀ  the AT+QICSGP command.
  • Activate the PDP context usingĀ  the AT+QIACT command
  • Open a TCP connection to the remote server using the AT+QIOPEN command.
  • Check the connection state using the AT+QISTATE command.
  • Send TCP data using the AT+QISEND command
  • Monitor for the +QIURC unsolicited command from the module that indicates that the device has received remote data
  • Read the server response using the AT+QIRD command

AT Command Tester Tool provides an interface to test the TCP connection with the Quectel modules.

In this example,

  • TCP connection is made to remote server ‘’
  • HTTP formatted data is sent to the remote server
  • The remote server echos the IP address of the device which is received by the module.

Keywords: Module TCP connection for Quectel Modules, M2M TCP connection for Quectel Modules, GPRS TCP connection for Quectel Modules, 3G TCP connection for Quectel Modules, TCP connection for Quectel Modules through AT commands,