modem

Problem with ring event in serial port communication

Hi, I have a modem in a computer where there is running a program that dials a number or waits for a call. When dialing a number the modem works fine, but I doesn't detect the Ring event when it's the one being called. My program is in java and it works perfectly on my laptop with its modem. When I use the modem to receive a fax, it wor...

Using TeraTerm to send a file, transfer rate, time

Hi! I'm using TeraTerm to transfer a file through a dial up connection, for this I will use ttl scripts in both ends to automatize it. I would like to measure the time it takes to transfer the file, or the transfer rate... but I don't know how to do it? Does anyone have any idea? Thanks a lot ...

Get Modem Info in .Net Compact Framework

I am using .Net Compact Framework on a Windows Mobile 6 environment and I need to get a list of modems and the serial port that they're attached to. In the full .Net Framework it can be easily done using System.Management.ManagementObject class; but, unfortunately this is not available in .NET Compact Framework and I haven't found any o...

modem call in c++

I'm trying to make a modem call in one end, and in the other end the program answers the call. It doesn't seem to detect the carrier. Am I doing anything wrong? Am I missing something? int main(int argc, char** argv) { ParseArgs(argc,argv); SerialPort* port = SerialPort::New(); if(!port) Error(ErrorNoMemory,"Can't create port"); i...

Directly accessing the modem in Windows Mobile

For some reasons I need to be able to access the internal modem of a Windows Mobile smartphone (a HTC s740 with WM version 6.1). What I want is to be able to access it like it was a serial port in order to give AT-commands. I have code that uses the TAPI Line interface and lineGetID() to get a "handle" on which I shuld be able to do Rea...

Blackberry as GSM modem from application running on the Blackberry

can I use the Blackberry as a GSM modem from an application running on the blackberry itself. I know it's possible to use the blackberry as a GSM modem from a PC. ...

How to get IMEI number of a data card

Dear All, I have one vodaphone data card with SIM embeded in that. there is IMEI number printed on datacard i wanted to know is there any way to read the IMEI number of that data card programatically. I am using datacard for browsing. and also i wanted to know where can i get information on programming for data card so that i can ...

Attaching another modem to an iPhone or gPhone

I have an idea in mind where a device such as an iPhone or gPhone is attached to a satellite modem for use when out of GPRS/UMTS range. Would such an idea be feasible, and what are the high level steps towards implementation? ...

Modem hangs during serial communication

I have got a Wavecom Supreme GSM modem. I wrote a simple application that communicates with the modem and reads text messages it receives. My application queries the modem for information about the number of messages it stores in its memory and if the number is greater than 0, it reads the messages deleting them from the modem's memory....

How to get caller ID in C# ?

Hello I wanna use 56K modem for getting telephone number of who calls the home phone, is there a way to achieve this with C# ? ...

how to get public ip through by gprs modem

I am using wavecom gsm gprs modem Model No: M1306B How to we enable the public for this modems. We doinged from the followings. AT+WOPEN=1 OK AT+CGREG=1 OK AT+CGAAT=1 AT#APNSERV="AIRTELGPRS.com" ERROR AT#APNSERV="CELLONEPORT" ERROR AT+CONNECTIONSTART ERROR. What can we do the settings. Please advise me. ...

Modem on /dev/ttyS0 can no longer be seen on my linux CentOS

Linux no longer can see a modem on /dev/ttyS0 I'm having a problem here, I have a modem that worked on a linux machine perfectly. Suddenly, it doesn't work any more. Linux doesn't see it using the wvdialconf command. The dialup modem is hooked up through the serial port (/dev/ttyS0). I use wvdialconf to have it work correctly. What c...

How to retrieve the telephone number from an AT CMGL response?

I have an application written in C that reads text messages from a modem using AT commands. A typical AT response from the modem looks like this: +CMGL: 1,"REC READ","+31612123738",,"08/12/22,11:37:52+04" The code is currently set up to only retrieve the id from this line, which is the first number, and it does so using the following ...

Which standard specifies the AT&W AT command?

While discussing how to process AT commands with a colleague, we discovered that contrary to our belief the command AT&W (store user profile) is not specified in V.250 (it only specifies ATZ and AT&F, which are related), leaving us wondering - where is it specified then? Update: Yes, we expected the command to have its origin in the Hay...

Answer modem using voip

I have an application where I have about 10,000 pieces of monitoring equipment across the US that periodically dials into a bank of 32 phone lines. I have two receivers of 16 lines each that answer the call and temporarily stores a small alpha string. I then have a computer that polls the receivers and parses the string and copies it to ...

How do i set the PDU mode of a modem using python sms 0.3 module?

Am using python sms 0.3 module to access my modem on com port. Am trying to send an sms but am getting the following error sms.ModemError: ['\r\n', '+CMS ERROR: 304\r\n'] When i read the Modem error codes, Error code 304 is for PDU mode, am just wondering how do i set the mode using sms 0.3 Am using a USB modem, Huawei model E220. Ga...

What is the best design for polling a modem for incoming data?

I have a GSM modem connected to my computer, i want to receive text messages sent to it using a python program i have written, am just wondering what is the best technique to poll for data. Should i write a program that has a infinite loop that continuously checks for incoming sms's i.e within the loop the program sends the AT commands...

C++ api for understanding tone signals on a phone line

Is there any good c++ source codes or api for handling phone lines like understanding tone signals. For example i like to find out if the person enters 3 (it's likely that this is done using it's tone sound). Do i need a special modem for this purpose or it can be done using only standard modems. ...

Oldschool question: Wardialers, what condition tested to see if another computer was connected?

I was wondering what conditions were used to check the connection at the other end of the line. Case 1: Computer dials a number, and a human picks up the phone, computer disconnects and moves on to the next phone number. Case 2: Computer dials a number, and a modem answers, computer disconnects and records the number as being a comp...

Wavecom GSM modem as a TCP client

Hi. I've been trying to do TCP communication using my Wavecom Fastrack modem. What I want to achieve is make the modem connect to a specified TCP server port to enable me to transfer data to and from the server. I found some information on than in the user's guide. Basing on the information you can find on page 66 I created an applicatio...