curl --request GET \
  --url https://api.example.com/v1/voiceai/conversations

{
  "conversations": [
    {
      "agent_id": "<string>",
      "conversation_id": "<string>",
      "start_time_unix_secs": 123,
      "call_duration_secs": 123,
      "message_count": 123,
      "status": "<string>",
      "call_successful": "<string>",
      "agent_name": "<string>",
      "transcript_summary": "<string>",
      "call_summary_title": "<string>",
      "direction": "<string>"
    }
  ],
  "has_more": true,
  "next_cursor": "<string>"
}