URL Commands

[aragorn76]

Hi, I have an Asterisk PBX configured on a server and Bria softphone on a PC client. Everything works perfectly and if I open a web page and write "http://sip:number@domain" the call start on the softphone. Now I need to know what or where I can find other commands that I can type on the web for example for close a call in progress or put pause of it. I searched in the internet but with no result. Sorry for my english and thanks for any help.