hi all, if anybody have got the information regarding authenticating a user with the help of openser and opendiameter ,pleaase help me in doing that.it seems that i am really spoiling a lot of days in doing the same by my own. i have configured openser and opendiameter correctly and even they are communicating with each other.i have used the auth_diameter module of openser.but it seems there is some problem.on the client side of the opendiameter,i am getting a messege like"invalid session id avp" when i do a call through x-lite softphone to openser. seeking ur responces regards bhargav.b