curl --request GET \
  --url https://api.comm.com/api/v1/voice/calls/dashboard \
  --header 'Authorization: Bearer <token>'

{
  "data": {
    "total_calls": 123,
    "answered_calls": 123,
    "picked_up_calls": 123,
    "leads": 123,
    "sales": 123,
    "answer_machines": 123,
    "total_cost": 123,
    "total_duration_sec": 123,
    "average_call_duration": 123,
    "answer_rate": 123,
    "lead_rate": 123,
    "sales_rate": 123,
    "hourly_breakdown": [
      "<unknown>"
    ],
    "daily_breakdown": [
      "<unknown>"
    ]
  }
}