If I'm interpreting your needs correctly, the following will help you:
- Create a new alert, configure all the tabs as required, but pay close attention to the tab marked 1 in my image, the Trigger Actions.
- Under Trigger Actions (behind the pop-up window shown in the image), click 'Add Action' and as indicated as maker 2 in my image, select 'Send a GET or POST Request to a Web Server'.
- Finally, click 'Configure Action'. You will be presented with the configuration wizard for the 'Send a GET or POST Request to a Web Server' action, where you can put in your URL.
Hopefully this will give you what you need. Let me know if you need any further guidance
His problem is the same with me and still can't connect to SMSC gateway server.