I am trying to connect a device over RS232 and communicate using AT commands, my understanding is that for example when dialling a number, I would use AT(make sure the device is ready to listen)D(dial command)037455773(example number). The device to which I am connecting has the capability of recording the temperature around it, but I cannot find the command in this list http://en.wikipedia.org/wiki/Hayes_command_set
Is there more I need to learn before getting to that stage, and if so, could someone point me in the right direction?
Thanks in advance, Ed