### Answer Here's what the documentation confirms about dynamic routing and call transfers in Retell AI: Can you configure multiple transfer numbers? Yes. You can set up multiple Transfer Call tools, each with a different destination number. The transfer number can be a number in e.164 format, a SIP URI, or a dynamic variable that gets substituted at runtime. [(1) ]() Can the AI transfer to a specific person based on intent? Yes. The recommended approach is to use intent-based routing with a dynamic lookup (e.g., a database, CRM, or webhook) . The agent detects the caller's request and transfers to the correct number without hardcoding all numbers in the prompt. [(2) ]() You can also use dynamic variables in the transfer destination field, allowing runtime substitution based on caller intent. [(1) ]() Can calls be routed to an alternate number if busy? The sources do not explicitly document automatic failover to an alternate number if the primary transfer destination is busy. This capability is not confirmed in the available documentation. Can multiple callers be transferred simultaneously to different agents? Retell AI supports unlimited concurrent calls, and each call operates independently. Multiple callers can be transferred simultaneously to different numbers based on their individual routing logic. [(3) ]() Is there a limit on transfer numbers? The sources do not specify a limit on the number of transfer destinations you can configure or use concurrently. For implementing intent-based routing at scale (like a company directory) , using n8n with a Google Sheet or database

as a lookup table works well—Retell calls a dynamic function, passes the detected intent/name, and the lookup returns the associated number for transfer. [(2) ]()

​ To learn more, see the sources I considered: [[1] Transfer call](https://docs.retellai.com/build/single-multi-prompt/transfer-call) [[2] Discord message from @dennis_71970 on 2026-01-14](https://discord.com/channels/1186424376300679209/1186462578310910112/1461035697686315091) [[3] Retell AI | AI Voice Agents for Enterprise Calls](https://www.retellai.com/ai-call-phone-agents) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.