Hello, i am using FreeRadius 1.1.3 and want to use it for Call Routing. The Sippy B2BUA will send AAA Requests to RADIUS and i want the routing based on the Called-Station-Id Attribute. For the beginning i would like to configure the routes in the users-File and later switch to an sql backend. This is my users-File: b2b Called-Station-Id == 555,Called-Station-Id == 557,Auth-Type := Accept h323-ivr-in = 'Routing:12345@192.168.1.1;expires=30;Codecs:alaw,g.726' b2b Called-Station-Id == 556,Called-Station-Id == 558,Auth-Type := Accept h323-ivr-in = 'Routing:12345@192.168.1.2;expires=30;Codecs:alaw,g.726' The Calls will always come from the same user and the called number will have to decide what SIP Server to use. If i have only one Called-Station-Id in the check pairs line, i get the Access-Accept with the reply data. But since one route can have a lot of numbers i need to be able to have several Called-Station-Id Entrys. From the description of the checkval attribute it appeared to me the correct solution. Apart from this the different number ranges are conncected to different end users, which i have to find. This will be an accounting issue. How can this be solved with Freeradius ? The real user is not known when the INVITE reaches Sippy. Sippy sends the request to Freeradius with a lot of information, from which Called-Station-Id will indicate what SIP Server to use and what End User is associated with the call. Just want to clarify the whole procedure: I have several incoming SIP Servers, which sends SIP calls to Sippy. Each SIP Server will control a certain number range and will send its servername as Username. The SIP Server have no infomation about which number belongs to which end user, they forward all calls to Sippy. The Radius Server will have the information what numbers are associated with a certain end user and to which sip server a call have to be sent. The Authorize Request from Sippy should confirm wether the destination number is valid (is configured for an end user) and replys with the correct sip server to use and with a special codec list for the call. If the number is not configured, a Access-Reject is send and the call is aborted. I hope i made myself clear ;) Kind regards, -- Tobias Wolf