Hi Russell, Thanks a lot for the hint :) I configured the gateway to handle situation. Right now Freeswitch is handling the "407 Proxy Authentication Required" and replying the ACK accordingly. But the new INVITE sent to the third party server resulted in "403 Forbidden". According to the analysis new INVITE has correct "realm" and "nonce" parameter which is received through "407 Proxy Authentication Required". Any hint on this? Thanks, Vivek. -----Original Message----- From: "Russell Treleaven" <rtreleaven@bunnykick.ca> Sent: Thursday, 12 January, 2017 11:22am To: "FreeSWITCH Users Help" <freeswitch-users@lists.freeswitch.org> Subject: Re: [Freeswitch-users] FreeSwitch as proxy for "407 Proxy Authentication Required" Freeswitch is not a proxy it's a b2bua. Google Sofia gateway, it might be what you need. On Jan 12, 2017 12:20 AM, "[ vivek@advaitamtech.com ]( mailto:vivek@advaitamtech.com )" <[ vivek@advaitamtech.com ]( mailto:vivek@advaitamtech.com )> wrote: Hi, Any help on this? -----Original Message----- From: "[ vivek@advaitamtech.com ]( mailto:vivek@advaitamtech.com )" <[ vivek@advaitamtech.com ]( mailto:vivek@advaitamtech.com )> Sent: Monday, 9 January, 2017 3:58pm To: [ freeswitch-users@lists.freeswitch.org ]( mailto:freeswitch-users@lists.freeswitch.org ) Subject: [Freeswitch-users] FreeSwitch as proxy for "407 Proxy Authentication Required" Hi All, Am trying to proxy the "407 Proxy Authentication Required" through freeswitch, My Objective is to proxy the "407 Proxy Authentication Required" received from the third party server to another server which is connected to freeswitch. Is it possible to do this?. If possible how do I do it. Please help me out. Thanks, Vivek. _________________________________________________________________________ Professional FreeSWITCH Consulting Services: [ consulting@freeswitch.org ]( mailto:consulting@freeswitch.org ) [ http://www.freeswitchsolutions.com ]( http://www.freeswitchsolutions.com ) Official FreeSWITCH Sites [ http://www.freeswitch.org ]( http://www.freeswitch.org ) [ http://confluence.freeswitch.org ]( http://confluence.freeswitch.org ) [ http://www.cluecon.com ]( http://www.cluecon.com ) FreeSWITCH-users mailing list [ FreeSWITCH-users@lists.freeswitch.org ]( mailto:FreeSWITCH-users@lists.freeswitch.org ) [ http://lists.freeswitch.org/mailman/listinfo/freeswitch-users ]( http://lists.freeswitch.org/mailman/listinfo/freeswitch-users ) UNSUBSCRIBE:[ http://lists.freeswitch.org/mailman/options/freeswitch-users ]( http://lists.freeswitch.org/mailman/options/freeswitch-users ) [ http://www.freeswitch.org ]( http://www.freeswitch.org )