Hello! I’m developing an AI caller app with Vapi (Electron desktop). Connectivity works: I can list assistants, create a BYO SIP trunk, and import my DID. Issue: • When I start a demo call (POST /call/phone), the API returns a callId and the call appears in Vapi logs, but it is immediately rejected with different statuses (no ringing/connection). My setup: • Provider: . • SIP trunk credentialId: . • PhoneNumberId (from Vapi): . • AssistantId: . • SIP gateway host: , resolved IP: . • Auth: username= / password=** (registration , realm/domain: ). • Dial format: tried E.164 with “+” and without. • From: , To: . Any ideas ?