Hi all, The scenario is: - The registered SIP Client make an outbound call - After a connect the client send a refer to a new destination (Blind Transfer) - The 202 accepted is correct as tcp sended - The Notify (sipfrag 200 OK) and the following Bye will send via UDP If I do the same with an inbound call, it works successfully. Is it a Bug? My Freeswitch version is: FreeSWITCH Version 1.7.0+git~20160502T014035Z~96e963d3eb~64bit (git 96e963d 2016-05-02 01:40:35Z 64bit) Mit freundlichen Grüßen Alexander Haugg C4B Com For Business AG Gabriele-Münter-Straße 3-5 D-82110 Germering Telefon +49 89 840798-170 Fax +49 89 840798-13170 alexander.haugg@c4b.de<mailto:alexander.haugg@c4b.de> www.c4b.de<http://www.c4b.de/> Registergericht: Amtsgericht München, HRB 125040 Vorstand: Bernd Woköck, Michael Schreier Aufsichtsratsvorsitzender: Dr. Helmut Maier