I used HL6528 to do ppp connection, but I want send at command.
I found an “at command” can do it.
Case 1. I can use virtual serial port on linux and I can get IP address by pppd. But I cannot ping 188.8.131.52.
I already check pppd that can ping 184.108.40.206 without CMUX mode.
question -> how to setup at+cmux correctly?
Case 2. Does Sierra have CMUX application on windows? I need to fast check it.