Roland Klabunde wrote: >> The the problem is: how can I understand from the statistics when the >> remote phone is ringing ? > If there is no explicit RINGING SIP message, you would have to analyze the > received RTP in order to find the ringtone pattern... Nearly impossible, I > guess. Is exactly what I want to do, I want to analyze the RTP traffic and recognize the ringtone pattern. Firt of all I need to get the RTP traffic, have you any suggestion to get it? cheers Davide