Let's walk through how you can implement a call forward flow in LiveKit with the conditions you mentioned. Here’s a step-by-step guide to help you along the way: 1. Initiate Outbound Call: Start by using

create_sip_participant

to place the call. This method begins dialing right away without waiting for an answer, giving you a smooth start. 2. Monitor Call Status: Keep an eye on the

sip.callStatus

participant attribute. This lets you track important states like dialing, ringing, active (when the call is answered), hangup, or unavailable (if the line is busy). 3. Set Ringing Timeout: You can set the

ringing_timeout

parameter to control how long the call rings. By default, it’s 3 minutes, but you can adjust it up to a maximum of 80 seconds to fit your needs. 4. Forward/Transfer Call: When it’s time to forward, use the

transferCall

method. You also have the option to play a dial tone during the transfer, which can enhance the caller’s experience. 5. Handle Answered Call: Once

sip.callStatus

switches to active, it means the forwarded party has picked up. At this point, you can end the agent session so the caller can continue seamlessly with the forwarded participant. 6. Handle Hang-Up: Finally, when either the caller or the forwarded participant hangs up, use the

delete_room

API to end the call for everyone involved. This method helps you manage ringing timeouts, busy signals, answered calls, and hang-ups smoothly and effectively. If you have any questions or need further clarification, feel free to ask—I’m here to help! Sources: Agents telephony integration | LiveKit Docs | SIP Integration | livekit/livekit_composite | DeepWiki | Making calls using SIP | LiveKit Docs | Making outbound calls | LiveKit Docs | pkg/sip/outbound.go