List phone numbers

{
  "phoneNumbers": [
    {
      "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
      "organizationId": "7bc05553-4b68-44e8-b7bc-37be63c6d9e9",
      "phoneNumber": "string",
      "displayName": "string",
      "assistantId": "bb8c7fe3-2157-48a3-a0a7-af503b091988",
      "provider": "twilio",
      "status": "active",
      "twilioSid": "string",
      "capabilities": {
        "voice": true,
        "sms": true,
        "mms": true
      },
      "createdAt": "2019-08-24T14:15:22Z"
    }
  ]
}