Thanks dlopeziot! Reading the documentation was my first step and I repeatedly review it when things don’t work. Trouble is it sometimes leaves out some subtle details or parts of it are confusing, at least for me. For example, the step you included in your example above for sending, i.e., “Wait until +KTCP_IND: 1,1” was not included in the example from the AT command reference for the modules I’m using (HL7588 & HL7648). I had already figured that much out since I actually get three separate +KTCP_IND unsolicited responses during execution with “…: 1.1” being the final one. Also, since I am using Verizon version modules, it took some digging for me to figure out that I have to use a of 3 in AT+CGDCONT command and the same value of 3 for <cnx_cnf> in AT+KCNXCFG command. I was just hoping I might gain more insight from better actual examples. Thanks again though.