CallAgentParticipant
One additional participant that calls using this Call Agent may bring on.
For example, a call to a patient whose agent can bring the patient's pharmacy onto the line once the patient agrees. The participant's name — the map key — appears in the call transcript and in the agent's instructions.
- dialType: ParticipantDialModeenumrequired
When this participant is dialed: at_start dials them during call setup; on_agent_request dials them only when the agent asks for it during the call.
valuesat_starton_agent_request - introType: ParticipantIntroModeenum
How this participant joins: private_first (the default) gives the agent a private conversation with them (everyone else waits on hold) before the agent merges them on; direct puts them straight onto the open line.
valuesdirectprivate_first - phoneType: stringnullable
_number A fixed number for this participant, in E.164 form. Set it for destinations that are part of the agent's configuration, such as an escalation desk, and for participants an inbound call must reach. Omitted, each call names this participant's number in its request.

