Hello, I use BigBlueButton, 0.81 and we must enable dial into conference via phone. Several months ago everything was good (working), but now it does not work ( I was working on thuesday for short time). I use external SIP account and there is problem with registration . There is error "2014-12-05 10:38:11.171892 [WARNING] sofia_reg.c:472 Bezposredni Failed Registration [503], setting retry to 60 seconds." I have just tried in different networks, on different servers and with two independent SIP operators. The usual voip client (X-Lite) is working ok with SIP accounts. I have attached a detailed debug log in file freeswitch.log. Please give any suggestions. I am in very difficult situation, because it is my work and I must repair it, but after several days I have no idea. Thank you in advance. Best regards, Kamil ____________________________________________________________________________________________________________________________________ Instytut Logistyki i Magazynowania www.ilim.poznan.pl | office@ilim.poznan.pl ul. Estkowskiego 6 | 61-755 Poznań, Poland | tel. +48 (61) 850 48 90 | fax +48 (61) 852 63 76 | REGON: 000018603 | NIP: 777-00-20-410 Zarejestrowany pod nr KRS 0000052866 - Wydział VIII Gospodarczy Krajowego Rejestru Sądowego Poznań - Nowe Miasto i Wilda _____________________________________________________________________________________________________________________________________ Instytut Logistyki i Magazynowania z siedzibą w Poznaniu działa na podstawie ustawy z dnia 30 kwietnia 2010 r. o instytutach badawczych (Dz. U. z 2010 r., Nr 96, poz. 618). Zgodnie z art. 24 ust. 1 punkt 5 ustawy o instytutach badawczych oraz § 4 ust. 2 Statutu Instytutu Logistyki i Magazynowania, do reprezentowania Instytutu Logistyki i Magazynowania uprawniony jest jego dyrektor.