I have purchased more than 10 Qty. TRB 145 GSM Modem. However, I am unable to send text SMS through this Modem. I tried though Hyper Terminal and our software application but I couldn't get success.
Steps I have followed:
1. Login into the web application and first downgrade firmware to get the option of RS232.
2. I have changed the control option - System > RS485 > Modem (and Save)
After selecting COM 1, continuous error or auto printing is coming and I unable to type any AT commands. But anyway I want to send SMS through my application or through GSM modem.
It should not like every time I will have to save or change settings in the web portal.