Thanks — I’m responding to your question about how to determine the ring duration when a call was placed. You can measure ring duration in two practical ways: by listening to SIP participant attribute changes programmatically, or by inspecting call timelines in Agent Observability. Both rely on tracking when the call enters the

ringing

state and when it transitions to

active

(answered) or

hangup

(not answered). Recommended approach (programmatic — best for automated tracking) 1. Listen for

participant_attributes_changed

events for the SIP participant. 2. When

sip.callStatus

changes to

ringing

, record a timestamp (start). 3. When

sip.callStatus

changes to

active

or

hangup

, record a second timestamp (end). 4. Ring duration = end − start. Example logic (pseudocode): • on `participant_attributes_changed`: ◦ if participant is SIP and

sip.callStatus

changed: ▪︎ if `ringing`: store

ring_start_time

▪︎ if

active

or `hangup`: compute

time.now() - ring_start_time

and log/store the result What to log/save •

sip.callStatus

transitions and their timestamps • identifiers like

sip.phoneNumber

or

sip.trunkID

so you can correlate the duration to a specific call • whether the final state was

active

(answered) or

hangup

(not answered) Alternative/manual approach (Agent Observability) • Use the LiveKit Cloud Dashboard’s Agent Insights timeline and logs. • Inspect the timeline or trace events to find when

ringing

began and when

active

or

hangup

occurred; subtract those timestamps to get ring duration. • This is useful for post-call analysis and troubleshooting. If you’d like, I can: • Provide a concrete code example in your preferred language (JavaScript, Python, or TypeScript). • Suggest a data model for storing these timestamps in your database. • Help with specific event names or attribute paths if you share which SDK or integration you’re using. Which option do you prefer, and what language/SDK are you using? Sources: SIP Lifecycle Management Agent | LiveKit Documentation | Streamline troubleshooting with Agent Observability | Outbound Calling Script | LiveKit Documentation