Iframe Test Harness

App URL Load

Size Full Desktop Tablet (sm) Mobile (sm)

Phone SET_CONTACT_PHONE_NUMBER START_CALL

Flow: idle — waiting for TALKHUB_READY Flow: READY → SET_CONTACT → CONTACT_FOCUSED → START_CALL

Current callId (read-only, from CALL_STARTED) END_CALL MUTE UNMUTE HOLD UNHOLD ANSWER_CALL DECLINE_CALL ANSWER_CALL / DECLINE_CALL act on the ringing inbound call and need the callId from CALL_STARTED; with the field empty they send no payload, which TalkHub refuses with CALL_NOT_FOUND.

Display SET_DISPLAY_MODE → CALL_ONLY current: unknown

Manual type

Payload JSON Send postMessage

Preset: SET_CONTACT_PHONE_NUMBER Preset: START_CALL Clear log