I need to implement a simple application to send short notify messages on gsm phone display via a GSM modem. I know that I can use the gsm USSD protocol to send messages instead of sms in order to speed up the delivery. Where I can find a detailed reference on the available USSD messages? Where I can find examples or sample applicati...
When I try to write an AT command to my GSM modem, it does not seem to take the command. I have used PuTTY to check that the command words, it does. I have checked to see if the port is opening, it does. What could I possibly be doing wrong? NOTE: The "lol" part is for debugging purposes. ;3 SerialPort sp = new S...
Just any old GSM compatible SIM card (bonus for 3G USIM). I presume I need some hardware? Can anyone recommend something cheap for hobbyist, and something more professional? I presume that there will be full docs of an API with the h/w, so maybe this should be tagged "no-programming-related"? Sorry, if so. Any good URLs or books (I a...
I ve developed a c# winforms application for sending sms by using this article of Sending sms using GSM It works pretty well... Now i want to send sms using GSM communication (ie) a mobile phone connected to PC and i have detect it and send sms using it in asp.net..... Is it possible Connecting and sending message through GSM modem usi...
I'm looking for a modem where I can host 10-15 normal sim cards. The modem will be used to send and receive SMS messages. This modem need to send a lot of messages at the same time. ...
I have this idea where I want to allow someone to call a phone number from their cell phone, and then a website would display their caller ID. I want to do this in php, but I'm really not sure how. I'm pretty good with PHP and I'm assuming you need some kind of GSM modem attached to the web server to accept the incoming phone calls, but ...
in php how can i convert normal text + accented characters in utf8 to gsm format for sending via sms. ...
I am developing a number of different mobile applications for a number of different mobile devices and I want to quickly test in a local development environment. I was wondering if it is possible (with some sort of hardware) to set up a local desktop CDMA / GSM base station for testing devices over a local personal cellular network. The ...
Is there end-to-end voice encryption in GSM ? If not, is voice communication between mobile handset and mobile base station, at least encrypted ? What keys are used there and which alogrithms ? any idea? ...
When a GSM modem is receiving voice(i.e., multiple wave files continuously) in the voice path, how will the modem able to identify the completion of a single wave file? Is there any software that could perform this? ...
Ideally I'd like to find a library for Python. All I need is the caller number, I do not need to answer the call. ...
Is it possible to detect GSM mobile (any kind) which connected through serial port to computer and then be able to send SMS through this mobile phone to other mobile phones from asp.net website running under iis(only 1 system), could anyone help me and guide me, I wrote a program which could open COM port but still couldn't detect mobile...
I am working on an open-source application called FrontlineSMS which can be interfaced with GSM modems to send and receive SMS. The windows installer that is available through their website works fine. Since i wanted to modify it, I got the source code and built the jar and tried to launch it. When I plug in the GSM modem and launch the ...
A gsm device sends data in each 3 seconds. 100 such devices are sending messages and there is a device to accept these messages. I want to insert these messages in mysql table in each 5 minutes using php. ...
hello, i am using GsmComm.GsmCommunication library. i have problem while sending messages. i am sending more than one message at a time and i have used loop. there are about 150 messages to send in my database. when i am sending messages it sends sometimes 25 or sometimes 30 messages, then it shows error "unable to open port" means it ...
hi there! i'm currently writing on some piece of code in android 2.1 that is supposed to measure the signal strength of the gsm signals. what i need is some kind of list with some kind of network IDs matching the corresponding signal strengthes... i got this far: public class main extends Activity { TelephonyManager telManager; ...
Hi, 1/ what is the relation between BTS and cell? I think one BTS harware can cover few cells and also some cells could be covered by more than one BTS isn't it? 2/ Is part of information, that mobile receives from GSM network identification of concrete BTS or mobile phone knows only cell-id? 3/ Is part of information, that mobile rec...
First, I am working on a project that opens an electric door when certain cell phones call the GSM modem's SIM card's number. But, as a starting point I want to send some AT commands to the modem, then from there I can continue. Here is the code I wrote so far: #define CINBUFSIZE 255 #define COUTBUFSIZE 255 #define TIMEOUT 500 char mode...
I would like to find out whether my android phone (ADP) is using A5/0, A5/1 or A5/2 at a specific time. How can I achieve this? ...
Hi, I have this script file in python running on S60: import location def current_location(): gsm_loc = location.gsm_location() print gsm_loc current_location() instead of printing a tuple of mcc, mnc, lac and cellId it prints None. on top of my python shell I see location between the capabilities included. what can be the prob...