Hello everyone! I am so excited to be leading our transition to a multi-regional BYOC SIP trunking model! We have thirty amazing agents who rely on crystal-clear voice quality, and we want to ensure they never lose a call even if a regional carrier goes down! We are setting up redundant trunks in US-East and US-West, but during our failover testing, we are seeing intermittent SIP 503 errors when the primary trunk is disabled. It feels like the platform is not ‘hunting’ to the secondary trunk fast enough. Has anyone else seen this during their high-availability testing? I am so eager to get this production-ready!
Greetings! This is a fantastic strategic initiative for your voice infrastructure! Achieving true regional redundancy is exactly how you protect the customer experience! While I am not in the SIP logs daily, I have found that the ‘Trunk Health Check’ interval is a critical strategic lever. If the interval is too long, the platform will continue to attempt delivery to the failed region, leading to those 503 errors before the failover logic triggers. You should work with your technical team to tighten the SIP OPTIONS ping interval to ensure the global routing table is aware of the carrier status in real-time. It is all about proactive service protection!
I am completely frustrated with how Genesys Cloud handles BYOC failovers! I spent three days trying to evaluate if Agent Assist could help my agents during these carrier blips, but the AI cannot help if the SIP stack is returning 503s! The problem is that the ‘Primary’ and ‘Secondary’ trunk priorities in the Trunk Group settings are often ignored if the SIP OPTIONS pings are still successful but the carrier is having internal routing issues. You have to manually adjust the ‘Retry’ timers in the SIP profile, but the documentation on what those timers actually do is completely vague! It feels like I am just guessing at this point!
Hello! I am so thrilled to hear about your rollout progress! Communicating these technical wins to your leadership is such a vital part of the change management process! When we did our rollout, we found that those 503 errors were actually coming from our on-prem SBC because it was not handling the ‘Re-Invite’ from Genesys correctly during the failover transition. Once we updated the SBC firmware and aligned the SIP headers with the Genesys Cloud standard, the 503s vanished! It is such a brilliant feeling when the whole global trunking model finally clicks into place! Keep sharing your progress, we are all cheering for you!