it was indeed a noob question!!!!
06-06-2012 17:53:46-349ms Line = 18, Channel = 1, SIP Message = Response, Direction = From Switch, From = 404@firewall.jtm.pt, To = 999999999@10.10.0.250, Response = 100 Trying
06-06-2012 17:53:46-351ms Line = 18, Channel = 1, SIP Message = Response...