Hello, I have a problem with the RTP stream. User A establishes a connection to user B. The user B sends the status code 100 (Trying). 180 (Ringing) and finally 183 (session progress). After receiving of the status code 183, PJSUA creates a RTP stream and user A hears the ringing tone. The received ringing tone has some interruptions and the consol output shows many error messages: Jitter buffer starts returning normal frames (after 1 empty/lost) After 4-6 seconds, the RTP stream is fine. However, if the user B does not send the status code 180 everything is fine. Can anybody help me! Best regard Norbert Weyrich -- Norbert Weyrich Software Communication Systems Tel. +49 4101 69699-78 :: Fax +49 4101 69699-18 n.weyrich at wenzel-elektronik.de WENZEL Elektronik GmbH :: Gehrst?cken 7 :: 25421 Pinneberg, Germany www.wenzel-elektronik.de Sitz und Registergericht: Pinneberg, HRB 9316 PI USt-IdNr.: DE 812946778 Gesch?ftsf?hrung: Dr. Volker Henkel, Dipl.-Ing. Thomas Zwick