I have a TRM250 Modem, and installed it successfully.
My issue: I cannot send USSD command including "#" special character. When trying, terminal change '#" character with "#013".
For example if I send AT+CUSD=1,*155# command the string is replaced with AT+CUSD=1,*155#013 on execution terminal and I doesn't have any response from modem.
Please see the screenshot in attached file.
Please need help to send USSD command on modem.