How to send Message in EC20 when websocket connected to server?

IoT Modules LTE Standard Module
1

I have made a connection of Websocket with my server after TCP opening and then GET Request done. But now I am not able to send anything to my server so tell me how to do that?

2

You can refer to the attached TCP documentQuectel_LTE_Standard_TCP(IP)_Application_Note_V1.1.pdf (445.1 KB)

3

By reading this also doesn’t work for me so please help me asap

4
  1. AT+CPIN? Check whether the module can recognize the card normally
  2. AT+CEREG? Query whether the module can be injected into the network normally
    3.AT+CSQ query the signal quality of the next module
    The above are necessary conditions for TCP connection, please verify