Trying to understand why our SIP trunk registrations drop intermittently when the weekly WFM schedule publishes. We are running Genesys Cloud v2 in the America/Chicago timezone, and this issue spikes every Friday around 4 PM when the bulk update hits. The error manifests as a 408 Request Timeout on the SIP INVITE messages for agents who are simultaneously updating their shift preferences in the self-service portal. It seems like the WFM engine is locking the agent resource records, causing the telephony stack to fail the registration handshake before the schedule state stabilizes. The logs show a clear correlation between the WFM API calls and the SIP stack timeouts, but no explicit error code links the two services directly.
The environment is standard Genesys Cloud with BYOC SIP trunks. We are using the latest WFM scheduling rules that enforce strict adherence to shift swaps. When an agent initiates a swap, the system attempts to re-validate the availability windows, which triggers a cascade of database locks. During this window, the SIP registrar rejects new registration attempts with a 408 error, leaving agents unable to make or receive calls for up to 15 minutes. This is unacceptable for our support queue, which relies on real-time availability updates. We have checked the network latency and packet loss, and those metrics are well within acceptable limits. The problem appears strictly tied to the timing of the schedule publish operation.
Has anyone encountered a similar conflict between WFM schedule publishing and SIP registration stability? We need a way to decouple the schedule validation from the telephony registration process. Perhaps there is a configuration setting in the WFM admin console to stagger the updates or prioritize telephony status over schedule adherence checks. We are currently mitigating this by manually holding off on swap approvals during peak hours, but that defeats the purpose of the self-service feature. Any insights on how to prevent the 408 timeouts during high-volume schedule changes would be greatly appreciated. We are looking for a permanent fix rather than a workaround.