curl --request GET \
  --url https://{subdomain}.mihu.ai/api/v1/pbx_extension_connectors \
  --header 'Authorization: Bearer <token>'

{
  "success": true,
  "data": {
    "items": [
      {
        "pbx_extension_connector_uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "name": "<string>",
        "phone_number": "<string>",
        "agent_uuid": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
        "agent_name": "<string>",
        "sip_connector_server": "<string>",
        "pbx": {
          "registrar_server": "<string>",
          "port": 123,
          "username_extension": "<string>"
        },
        "inbound": {
          "allowed_ip": "<string>"
        },
        "auth": {
          "has_separate_credentials": true,
          "username": "<string>"
        },
        "normalizer": {
          "default_prefix": "<string>",
          "condition_length": "<string>",
          "condition_prefix": "<string>"
        },
        "created_at": "2023-11-07T05:31:56Z",
        "updated_at": "2023-11-07T05:31:56Z"
      }
    ],
    "pagination": {
      "current_page": 1,
      "per_page": 25,
      "total": 137,
      "last_page": 6,
      "from": 1,
      "to": 25,
      "has_more": true
    }
  }
}