Stream a call's caller real-time text (RTT/TTY) over SSE
Voice
Stream a call's caller real-time text (RTT/TTY) over SSE
Server-Sent Events feed of the CALLER's real-time text (RFC 4103 / TTY-TDD) for a live call, for the softphone RTT panel. Emits `connected`, `status` ({status, terminal}), `rtt` ({speaker:"caller", text, ts, final}) and `end` events plus keepalive pings. The agent's own outgoing lines are appended locally by the panel and are never echoed here.