Does livekit support this: LiveKit SIP trunks support a X-LK-Room-Name header to specify the room name:

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Can I use a custom SIP header value (like X-Event-Log-Id) in the dispatch rule room name template? Or is there another way to get a predictable room name that I control?

You're asking whether a custom SIP header (like

X-Event-Log-Id

) can be used directly in a dispatch rule room-name template, or how to get a predictable room name you control. You cannot use a SIP header directly in the static room name template. Instead, map the header to a participant attribute and use that attribute in your agent/dispatch logic to determine or create the room name. Steps: 1. On the inbound trunk, add a

headers_to_attributes

mapping (e.g., map

X-Event-Log-Id

→

event_log_id

). 2. In your agent code, read the participant attribute (

event_log_id

) for SIP participants and: ◦ create/join a room named from that value (for predictable names), or ◦ route the call based on that attribute. Alternative if you control dialed numbers: use

roomPrefix

in

dispatchRuleCallee

to derive room names from the called number. If you want, tell me which method you prefer (header-based attribute mapping or callee-prefix) and share an example header value or dialed number; I’ll give the exact trunk config and sample agent code. Sources: SIP dispatch rule | LiveKit docs | SIP participant | LiveKit docs