I want to confirm how outbound batch calling and concurrency work. I have ~1,000 leads and want to complete all calls in one day without purchasing extra concurrency or enabling burst mode. If my concurrency limit is 20, does Retell automatically queue batch calls and start a new call whenever one ends (keeping max 20 active calls at a time) until all leads are completed? Please confirm whether batch calling follows this behavior and if there are any additional costs beyond normal per-minute charges. I’d also like to confirm how dynamic routing and call transfers work in Retell AI. 1. Can I configure multiple transfer numbers (for example, 2 or more)? 2. Can the AI transfer calls to a specific person/number based on user intent (e.g., “I want to talk to John” → transfer only to John’s number)? 3. If that specific person/number is busy, can the call be routed to an alternate number automatically? 4. If multiple callers request a human at the same time, can they all be transferred simultaneously to different agents/numbers? 5. Is there any limit on the number of transfer numbers I can add or use concurrently?