during warm transfer, i want the agent to ask the person they are transferring to if they want the call to be connected or not. how will that be implemented?

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i am using livekit apis

Here’s a friendly guide to help you implement a warm transfer using LiveKit APIs, where the agent checks in with the recipient before connecting the call: 1. Start by using the

transfer_sip_participant

method — it’s what lets you transfer the call to another participant or phone number. 2. Before you kick off the transfer, the agent can have a quick chat with the recipient to see if they’re okay with taking the call. 3. Once the recipient gives the green light, you can use the LiveKit API to make the transfer happen. Here’s an example to get you started:

async def transfer_call(self, participant_identity: str, transfer_to: str):
    try:
        # Initialize LiveKit API client
        livekit_api = api.LiveKitAPI(
            url=os.environ.get('LIVEKIT_URL'),
            api_key=os.environ.get('LIVEKIT_API_KEY'),
            api_secret=os.environ.get('LIVEKIT_API_SECRET')
        )

        # Create transfer request
        transfer_request = proto_sip.TransferSIPParticipantRequest(
            participant_identity=participant_identity,
            room_name=self.context.room.name,
            transfer_to=transfer_to,
            play_dialtone=True
        )

        # Perform transfer
        await livekit_api.sip.transfer_sip_participant(transfer_request)
        await livekit_api.aclose()

    except Exception as e:
        print(f"Failed to transfer call: {e}")

Just swap out the placeholders like

participant_identity

and

transfer_to

with your actual details. And a quick heads-up — make sure your LiveKit API credentials and SIP trunk settings are all set up correctly in your environment variables. If you hit any snags or want to chat more about this, I’m here to help!