I am trying to become familiar with the 3G cellular modem, and I want to communicate with it using the API frames. I have tried to send the following string to the modem using the Realterm terminal: 0x7E 0x00 0x09 0x88 0x07 0x53 0x48 0x00 0x00 0x7D 0x33 0xA2 0x00 0x20. I have confirmed both the baud rate and com port using XCTU. I have sent the string as Hex, with a character return.
I have yet to receive any kind of response. Does any one know of a command that can be sent to the modem that would generate some kind of standardized response? Or could point me in the correct direction?
Thank you all in advance.