at-command

I am facing an issue related to AT+CUSD command. On some Gsm modems, this command expects three parameters while on the others, it expects just two parameters. Moreover, different values of those parameters. I want to know that, how can I configure the Gsm modem so that this command can be executed in a uniform way on most Gsm modems. Forexample: On Nokia c6-01 , the cusd command is executed successfully only in this way: AT+CUSD=1,"*123#",15 Whereas on Sony Ericsson K750: AT+CUSD=1,"*123#" It gives an error if I give a third parameter. hlovdal The command is defined in 27.007 , and the syntax

I'm trying to talk to samsung galaxy s2 plus and huawei p1 xl (u9200) modem sending AT commands, but can't get any result. I'm sending commands using adb shell and view logs with logcat. In samsung when i execute cat /proc/tty/drivers i get the following: /dev/tty /dev/tty 5 0 system:/dev/tty /dev/console /dev/console 5 1 system:console /dev/ptmx /dev/ptmx 5 2 system /dev/vc/0 /dev/vc/0 4 0 system:vtmaster rfcomm /dev/rfcomm 216 0-255 serial g_serial /dev/ttyGS 237 0-3 serial serial /dev/ttyS 4 64-67 serial pty_slave /dev/pts 136 0-1048575 pty:slave pty_master /dev/ptm 128 0-1048575 pty:master

I am developing an application for GSM Modems using AT commands. I have a problem reading Unicode messages or ussd example: that dcs=17 not 7 or 15 or 72 Two years ago, and I'm looking for a solution to no availI was able to find a partial solution through the use of Chinese phone where the phone can read Chinese codingBut all Nokia phones do not support the codec Arabic or ChineseAnd service responses appear incomprehensible symbols Example: +CUSD: 0,"ar??c ?J <10???@d@??? @0@??@D? ?Z?xb @ $@?@?@Z@@?? @-@H?@???@b@@$? @3@h?P???@??(??",17 But when you use the phone shows the Chinese response

Im working on a hobby project involving an Arduino and TC35 GSM Module, all is going well really but I am wondering is there an AT Command to terminate a voice call (ATD+phone number;) as I cannot seem to find one in any of the literature I've searched through. Thanks, Dave I think the answer to your question is ATH0 from memory While the "classic" command ATH (there is no need to give a numerical argument to ATH) is applicable for disconnecting calls, notice that it might be configured to do nothing by AT+CVHU=1 (ignore DTR pin and ATH) for other phones (TC35 seems to not support AT+CVHU).

I'm trying to create android app for measuring 2G 3G network similar to QualiPoc . I'm aware that there is basic Android API for gathering Network Info, for example: How to know Location Area Code and Cell ID in android phone However, this API is rather limited, and not sufficient (for example: on my phone RSCP values are refreshed every 10 seconds...) Since my phone is rooted, I've managed to run basic AT commands on the qualcomm modem /dev/smd0 How to send a command to android and then get its answer? What AT Commands should I use to read RxLevel, RXQuality, CellID, LocationAreaCode, RSCP,

Is there a class for AT communication with devices? Like a class which encapsulates AT commands into a .NET interface ? It needs to be also able to parse AT responses such as Network Lists . Example : +COPS=? returns a list of carriers and it would take some pretty complex regex to actually parse it. Instead of writing my own lib I want to use a premade one. AT Commands I am refereeing to are these : http://en.wikipedia.org/wiki/Hayes_command_set Try this one: GSM Communication Library . Apart from built in commands it allows you to send any command you need. I hope this also help you. This is

Can anyone explain me the basic concept or provide me any documentation on sending receiving the sms using the gsm modem connected to pc via a C# application. I did find lot of source codes but not able to get what is the procedure or algorithm behind it. One such link is here http://www.freestudentprojects.com/c-net-projects/send-and-receive-sms-in-net-using-gprs-modem/ I downloaded the source code but the things are not quite clear. thanks, s You need ATCommands to communicate with GSM modem. This is very good codeproject article for understanding the procedure with demo. You can use AT