i was trying to test FS with 1 calling party and 1 called party configured in 2 WinSIPs, the registration to FS is OK for both party, but while making calls, the calling party kept receiving 407 Proxy Authentication Required response, i tried to uncomment <param name="accept-blind-reg" value="true"/> <param name="accept-blind-auth" value="true"/> in internal.xml of sip_profiles and still receiving 407 response. the FS log keeps on displaying the following DEBUG: 2013-06-14 18:54:42.166920 [DEBUG] switch_core_session.c:1005 Send signal sofia/internal/1500@192.168.0.100:15070 [BREAK] 2013-06-14 18:54:42.166920 [DEBUG] switch_core_session.c:1005 Send signal sofia/internal/1500@192.168.0.100:15070 [BREAK] 2013-06-14 18:54:42.187428 [DEBUG] sofia.c:7860 IP 192.168.0.100 Rejected by acl "domains". Falling back to Digest auth. 2013-06-14 18:54:42.187428 [DEBUG] switch_core_session.c:1005 Send signal sofia/internal/1500@192.168.0.100:15070 [BREAK] 2013-06-14 18:54:42.187428 [DEBUG] sofia.c:1787 detaching session c301db43-84d7-4b44-8ef1-8369bbf9f476 2013-06-14 18:54:42.187428 [DEBUG] sofia.c:1879 Re-attaching to session c301db43-84d7-4b44-8ef1-8369bbf9f476 2013-06-14 18:54:42.187428 [DEBUG] switch_core_session.c:1005 Send signal sofia/internal/1500@192.168.0.100:15070 [BREAK] 2013-06-14 18:54:42.187428 [DEBUG] switch_core_session.c:1005 Send signal sofia/internal/1500@192.168.0.100:15070 [BREAK] 2013-06-14 18:54:42.206960 [DEBUG] sofia.c:7860 IP 192.168.0.100 Rejected by acl "domains". Falling back to Digest auth. 2013-06-14 18:54:42.206960 [DEBUG] switch_core_session.c:1005 Send signal sofia/internal/1500@192.168.0.100:15070 [BREAK] 2013-06-14 18:54:42.206960 [DEBUG] sofia.c:1787 detaching session c301db43-84d7-4b44-8ef1-8369bbf9f476 2013-06-14 18:54:42.206960 [DEBUG] sofia.c:1879 Re-attaching to session c301db43-84d7-4b44-8ef1-8369bbf9f476 My question is how can i disable FS from asking 407 and/or make the call through? BR