i’m using Supreme 20 in my research, but i have a slight problem with it. i tried to send data to another fastrack 20 modem.
i’m using the ATD. without ‘;’ because i want to send data not using the call function. but the response was
NO CARRIER.
could someone give me a clue about this problem? thanx a lot.
Thanx for the quick replies,
yes my SImcard has the function to send data.
I mean that i want to use the ATD command to send the data, not as the call function. since the only difference between the call function and sending data is the ‘;’ mark in the end of the command.
i have an opinion, maybe there is some parameter or register value that i should have set up first before i use my modem to send data. is there such a parameter?
i’m using the same SIM for both of my modem. all i want to do is to connect both of my modem using the ATD function to send data or fax. if you read the AT COmmand user guide u will find that ATD has 2 function. yes my LED light is blinking, and i tested it again by using it to made a call to my cellphone and it went perfectly.
i’ve read the user again yesterday and i found out about the AT+CBST AT COmmand. it is said that the command was to change the data type sent by the ATD command. am i get it right?
The ATD command establishes the connection, and nothing else.
Once the connection is established, you need something else to actually send the data!
This is exactly the same as with a standard PSTN (landline) modem - nothing GSM-specific here.
Was that a data call, or a voice call?
Not quite: again, ATD establishes a connection; it does not send any data over that connection.
Thus, AT+CBST affects the type of the connection established by ATD.
i’m using ATD to make a voice call to my cellphone. it worked. and when i said data, the data is just a character which when i type it on my modem. the same character was sent and appear in the other modem. not the big size data type. are there any other way to do this kind of function? the concept is really simple. i just want to send every character that i type on my computer to the other computer (in hyper terminal) using the Wavecom modem.