Stream Call Transcript

Stream a call’s transcript via Server-Sent Events.

On connect the server replays all existing transcript turns from the database, then streams new turns in real time as they arrive from the voice provider. A : heartbeat comment is sent every 15 s to keep proxies alive. The stream closes after sending an ended event when the call completes (or immediately after replay if the call has already ended).

Works for both live and completed calls — same URL either way.