When i tried to send SMS as described in other post via hyperling terminal, the SMS does not go trough. Sending SMS from WEBUI works fine. I tried updating firmware to the latest, but then the problem is that mobile connection is not established with same configuration.
Downgrading firmware fixes mobile connection issue, but then again RS232 modem does not work as it should.
I have read smilliar threads but not as same as mine. Problem is we need to connect PLC to the RUT955 (for remote connection to internet) and do sms sending with AT commands via RS232 port.
How can we solve this problem?