curl --request GET \
  --url https://api.pyai.com/v1/telephony/numbers \
  --header 'Authorization: Bearer <token>'

{
  "object": "list",
  "data": [
    {
      "object": "telephony.number",
      "id": "pn_...",
      "phone_number": "+14155550123",
      "country": "US",
      "area_code": "415",
      "capabilities": {
        "voice": true,
        "sms": true
      },
      "agent_id": "<string>",
      "recording": true,
      "monthly_cost_cents": 123,
      "created_at": 123,
      "released_at": 123
    }
  ]
}