Access to the WebSIM server is restricted to the project participants; here you find a sample page with MPEG movies that show what happens on the mobile phone if you send HTTP requests to its SIM.
Assume you oder a book from an online bookshop over the Web; if you enter your phone number (say, +1234567890) in the order form, the shop can send a request to the Web server in your SIM to confirm the order.
This request would use the GSM SIM Toolkit command "Select Item", and it would look something like:
https://websim.eurescom.de/+1234567890/st/si=(Confirm%20Purchase,Cancel,Call%20Hotline) |
The actual
request that is arriving in the SIM's Web server is
GET
/st/si=(Confirm%20Purchase,Cancel,Call%20Hotline) |
/st/si" (SIM Toolkit,
Select Item) in the SIM, which pops up a on the mobile
phone; the menu's items are passed as comma-separated
strings, where "%20" stands for a space
character. The response that would be returned to the book shop is the item that has been chosen on the mobile phone (possibly after digitally signing choice in the SIM).
You might want to watch an MPEG movie (1 MB) that shows how this looks on a mobile phone; the image you see is a screen shot taken from this movie.