Thanks — you're asking how warm call transfer works and how to capture the call recording plus transcript. Below is a concise, actionable summary and next steps. Acknowledging your request • Responding to: warm (agent‑assisted) call transfer, and obtaining recordings + transcripts. Warm call transfer (what happens and what to configure) 1. Use the WarmTransferTask (or equivalent warm‑transfer API). 2. Typical flow: ◦ Place caller on hold (audio I/O disabled; optional hold music). ◦ Create a private consultation room for briefing. ◦ Dial the supervisor via SIP using

sip_call_to

(phone number or SIP URI) and

sip_trunk_id

or

sip_connection

. ◦ Pass full context in

chat_ctx

(conversation history, intents, entities, sentiment). ◦ Once briefed, move the supervisor into the caller’s room and connect; AI agents disconnect. 1. Key parameters you can set:

sip_call_to

,

sip_trunk_id

/

sip_connection

,

hold_audio

,

extra_instructions

,

tools

. Recording the call (options and how to enable) • Enable auto‑egress in your SIP dispatch rule to record calls automatically. • Egress types: ◦ Room Composite Egress — whole room (MP4/WebM or RTMP). ◦ Track Composite Egress — synced individual participant tracks. ◦ Track Egress — raw individual tracks (e.g.,

ogg

audio). • Programmatic control: use

EgressClient

methods such as

startRoomCompositeEgress()

,

listEgress()

,

stopEgress()

. • Backup behavior: if cloud upload fails, recordings are saved to a backup bucket for 7 days and

egress_ended

webhook includes

backupStorageUsed: true

. Transcripts (real‑time and storage) • Transcription is published in real time on the

lk.transcription

text stream. • Subscribe to

conversation_item_added

events within an

AgentSession

to receive transcript segments (includes timing metadata for alignment). • Transcripts and recordings are stored in LiveKit Cloud and can be exported to your configured storage (e.g., S3) via egress. Next steps I can help with • Provide specific code samples (JS/Python) for WarmTransferTask setup, starting egress, or subscribing to

lk.transcription

. • Guide you through SIP trunk parameter configuration or an example

EgressClient

call. Which would you like next: a code example (which language?), or help configuring SIP/egress settings for your environment? Sources: WarmTransferTask | LiveKit Documentation | The Handoff Pattern for Voice Agents That Replaces IVR Menus | LiveKit | The Human-in-the-Loop (HITL) Pattern for Voice Agents | LiveKit | Universal Egress | LiveKit | Backup Egress Recordings, with interactive elements

Python

can you simpleify the warm call transfer so that i can understand it