isIncomingCall=true to target an inbound call instead. Typically used to record follow-up actions, context the agent missed, or personal observations after reviewing the transcript. Can be called on both in-progress and completed calls; there is no formatting support (plain text only).curl --location --request PATCH '/calls//notes' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"notes": "Follow up next week about the pricing",
"isIncomingCall": false
}'{
"success": true,
"message": "string"
}