# 발신번호 등록하기

<figure><img src="/files/TzvM3DpdtPMMkKPqz9yD" alt=""><figcaption></figcaption></figure>

센드온 회원가입이 완료되었다면, 발신번호 등록이 필요해요.\
기본적으로 가입할 때 본인 인증 된 번호가 자동으로 발신번호로 등록돼요.

하지만, 다른 유선번호나 업무용 휴대폰 번호를 등록하고 싶다면, 발신번호 등록을 통해 이용할 수 있어요.

발신번호 등록 방법을 자세히 알려드릴게요.&#x20;


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://guide-user.sendon.io/readytosendon/addnumber.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
