C# - Need help to connect kannel sms gateway to asp.net site

I want to create a web application using C# which retrieve contact numbers from database and then simply send sms to all those mobile numbers. I want to use Kannel sms gateway and GSM mobile, i need step by step guide for how to code in C# to communicate with that sms gateway to send messages to mobiles

The steps will be offered by that Gate way which will be used by you.When you will get access that gate way then you have to pay some money as well for the service.
If you are gonna do this through C# then it does not mean that it is also a requirement from that gateway or not.

I recently install kannel 1.4.3 for windows in my windows 7, and trying to connect it to my motorola l6 mobile by doing changes in kannel.conf file but i am unable to connect my kanne gateway to mobile. Can you guide me please?

My mobile is connected via usb port. Any idea?

Hi, I would suggest that you should use Ozeki NG SMS Gateway instead, because it is one of the most reliable gateways, and it provides the high capacity that my company needs. In the beginning I didn't know much about how to use it, but with their support, I feel like an expert now.
I hope I could help.
Max

I would also suggest you the Ozeki NG SMS Gateway like maxh69, I use it as well and it is able to send 500 sms per second.

Kannel sms gateway has not been developed for over 2 years, so I would be careful about developing anything using that platform as it may be a dead end.

If you do not want to use an SMS service provider, which you pay a monthly fee to and outsrouce all of the SMS headaches then you can setup a PC to GSM phone connection and go down that route.

Check if your GSM phone supports SMS text mode AT commands.

You need a GSM phone that allows PC connection through USB cable or bluetooth connection.
For USB connection you will require a USB serial driver from the phone vendor.
For bluetooth you can try and add it add new hardware. Once the connection between PC and phone is setup you can communicate with the phone using AT commands.
To check if your modem supports this SMS text mode, you can try the following command:
AT+CMGF=1 <ENTER>

If you get an OK repsonse then you can use the CSMP configuration command and CGMS send message command.

To create a C# program for this is too vague at this stage until the hardware and software setup and configuration information is known.