Hi, I need one info regarding ringback tone. How ISP are sending for numbers which are unavalible, "number is temporary unavalible"? I guess this is send in ringback tone? but how to achive that with FS as I must bridge to avalible user and set action application ringback to set ringback application? I need to do this for unavalibe numbers, setting own ringbacktone, on the call should not be answerd as if the call is answered, it will be in billing. thanks! Miha