Ran the quarterly security audit on the Ohio BYOC trunks. Console’s flagging a SIP 496 on REGISTER when the compliance engine pushes updated certs. Carrier SBC expects SHA-256 but the platform is still signing with SHA-1. Outbound routing’s doing jack all wrong. Inbound registration times out after 30 seconds. Trunk dashboard shows the cert expiry is fine. API call to /api/v2/telephony/providers/edge/trunkgroups returns a 200 but the cipher mismatch isn’t showing up in the logs.