curl --request GET \
  --url https://api.telli.com/v1/get-call/{id} \
  --header 'Authorization: <api-key>'

{
  "call": {
    "call_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "attempt": 123,
    "from_number": "<string>",
    "to_number": "<string>",
    "direction": "<string>",
    "external_contact_id": "<string>",
    "contact_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "contact_details": {},
    "agent_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "triggered_at": 123,
    "triggered_at_iso": "<string>",
    "started_at": 123,
    "started_at_iso": "<string>",
    "ended_at": 123,
    "ended_at_iso": "<string>",
    "call_length_min": 123,
    "transcript": "<string>",
    "transcriptObject": [
      {
        "content": "<string>"
      }
    ],
    "call_analysis": {},
    "call_outcome": {},
    "collected_data": {},
    "booked_slot_for": "<string>",
    "recording_url": "<string>"
  },
  "contact": {
    "contact_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "external_contact_id": "<string>",
    "external_url": "<string>",
    "created_at": "<string>",
    "gender": "<string>",
    "first_name": "<string>",
    "last_name": "<string>",
    "phone_number": "<string>",
    "in_call_since": "<string>",
    "reached_at": "<string>",
    "contact_details": {},
    "call_attempts": 123,
    "next_call_at": "<string>",
    "email": "<string>",
    "timezone": "<string>",
    "salutation": "<string>"
  }
}