Agent Transfer

Switch between specialized AI agents during a call without phone-based transfers.

Overview

Agent Transfer lets you hand off a call from one AI agent to another mid-conversation — instantly, over a single phone number, with full conversation context preserved.

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Why Agent Transfer vs. Transfer Call

	Agent Transfer	Transfer Call
Speed	Near-instant	Requires new phone connection
Reliability	No telephony failures	Dependent on carrier
Context	Full chat history carried over	No context passed
Phone numbers	One number for all agents	May require multiple numbers

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Setup

1. Add the tool

   In your agent’s Functions section, select Agent Transfer from the dropdown.

2. Configure the destination

   Specify the destination agent ID and version. Choose whether the current agent should announce the transfer to the caller before handing off.

3. Update your prompt

   Tell the agent when to trigger a transfer:

   If the user asks to book an appointment, use the agent_transfer tool to hand off to the scheduling agent.
   
4. Test

   Validate using the web call interface or playground.

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Settings Behavior During Transfer

Setting	Behavior
Opt-in/out preferences	Persist across the full call
Webhook URLs	Persist across the full call
Language	Switches to match the receiving agent
Voice selection	Switches to match the receiving agent
Voice model	Switches to match the receiving agent