curl --request POST \
  --url https://api.telli.com/v1/phone-numbers/{id}/replace \
  --header 'Authorization: <api-key>'

{
  "oldNumber": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "phoneNumber": "<string>",
    "inOutboundPool": true,
    "createdAt": "2023-11-07T05:31:56Z"
  },
  "newNumber": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "phoneNumber": "<string>",
    "inOutboundPool": true,
    "createdAt": "2023-11-07T05:31:56Z"
  }
}