SIP setup with Broadvox. Using Wan port with Public IP connected to carrier provided router in bridge mode. I have it set to authenticate via the IP address, after initial setup with user name and password resulted in immediate outbound call failures. Upgraded them from 4.2 (20) to 5.0 (8). During the day, incoming and outgoing work fine. Around midnight a dispatcher arrives and outbound calls fail, inbound are successful. Outbound calls are successful only after several outbound failures. And outbound will subsequently fail again during the wee hours of the morning.
Danny
Danny