Sending AT commands in C#

[poriali]

Hi there,,

1- i am working in a project to send SMS messages from a pc to a mobile phone automatically using C#..

if any one worked on similar projects -even if it is not on C#- please ket me know so that i can ask some questions about this,,

2- Why sometimes the GSM modem gives the OK responce after you send the Message but it doesnt send it.. what does that mean,,any ideas?

[pankajmotiyar]

hi can u send me how to send AT commands to Nokia Mobile phone using C# as programming language..


thanks in advance

Pankaj Motiyar
Software Engineer
pankajmotiyar@aol.com

[sushil_dr]

There are few steps you need to perform in order to send AT commands to mobile using C#
1> configure and open the serial port using using System.IO.Ports class
- Serialport.open() and Serialport.close() API are available for doing the same.

2>Write the AT command to opened COM port in step 1.
Serialport.Writeline() API can be used for same.

Example code is pasted for doing same:

private SerialPort portConfig = new SerialPort();

// configure port
portConfig.PortName = COM4 ;
.....
.....
//open the port
portConfig.Open();

// send AT command to dial a number
portConfig.WriteLine("ATD" + mobileNumber + ";");

[adnananis]

I need help on this. I am working on the same project anybody has already done this project.

Kindly response ASAP.

[sibal_pooja]

I am working on a similar project too (in C), although I am having problems with PDU mode messaging but I may be able to help you. So, what is your problem?

[irfandar]

I am working on the similar problem is how do get a response back from the phone
Thank You