Hi all, I was trying to integrate the quectel <https://www.quectel.com/UploadImage/Downlad/Quectel_BG96_TCP(IP)_AT_Comma... tcp/ip connection in the ofono driver. I used AT+QIOPEN for opening the socket, AT+QIRD for receiving data from the server and AT+QISENDEX for sending data to the server. The 3 functions are working correctly if I executed it directly in the serial port. I had issue with ofono when it send the AT+QISENDEX. Below is the command: char const *command2 = "AT+QISENDEX=2,\"48656c6c6f\""; g_at_chat_send(data->aux, command2, none_prefix, NULL, NULL,NULL); The first execution of the QISENDEX works. My server received the data but when I try it again, the ofono stuck somewhere where the it couldn't run any AT commands anymore. Then, I killed the ofono and opened the serial, I ran this command AT+QISENDEX=2,"48656c6c6f" and it works fine. I enabled the -d (debug) in ofono parameter and I couldn't find any logs related to what I am seeing. I would like to know if anyone could give me pointers on how to trace the problem?. Regards, John