Hello, I'm facing an issue with Freeswitch. Suddenly, and on an random basis time interval, calls are no more forwarded to the B gateway. I see then that Freeswitch did an attempt to start sending the call to leg B but finally terminate on 503. And a tshark doesn't shows that an INVITE is sent to the B gateway. The result of a "sofia status" on the concerned gateway showing that the gateway is considered as Up. Freeswitch is running on version 1.10.1. B gateway is reach through a DNS URI. Would it be possible that one time failure (such as 1x503 from B gateway and/or a failure in the DNS lookup of the URI) could result in this behaviour? Regards, Igor. -- L'absence de virus dans ce courrier électronique a été vérifiée par le logiciel antivirus Avast. https://www.avast.com/antivirus