Calling Number

Available in Classic and VPC.

The Calling‑Number section explains how to register and manage calling numbers for SMS message sending.

Register a calling number

Before sending SMS messages, you must first register a calling number. You can register a calling number through document verification.

Register calling number (document verification)

To register a calling number via document verification:

1. Click > Services > Application Services > Simple & Easy Notification Service on the NAVER Cloud Platform console.
2. Navigate to SMS > Calling Number.
3. Select the project in which you want to register a calling number, then click [Register calling number].
4. Review the calling‐number document verification request pop‑up, then agree to the terms and conditions.
5. Enter the calling‑number information and upload the required documents.
   • Name (corporate name): Enter the owner or corporate name of the calling number.
   • Calling number: Enter the calling number.
     • Input digits only, excluding the “‑” character.
   • Upload required documents: Click the [Add file] button to upload the required documents.
     • You can upload only files in PDF, JPG, or PNG format.
     • You can upload files only up to a total of 10 MB.
   • Request details: Enter the information to be provided.
6. Click the [Apply] button.
   • Your application is completed, and the system moves you to the [View calling numbers] screen.
   • The NAVER Cloud Platform administrator reviews and approves the authentication request; this can take approximately 3–4 business days. Once registration is complete, you can use the calling number immediately when sending SMS.

Modify calling-number registration request information

If you applied to register a calling number via document verification, you can edit your application information.
To modify your calling‑number registration request information:

1. Click > Services > Application Services > Simple & Easy Notification Service on the NAVER Cloud Platform console.
2. Navigate to SMS > Calling Number.
3. Select the project with the application you want to modify, then click the [By request] tab.
4. Click the row for the calling number whose information you want to update, then click the [Resubmit] button.
5. When the document verification pop-up appears, apply the changes and click the [Apply] button.
   • The system applies your changes.

View calling numbers

To view registered calling numbers:

1. Click > Services > Application Services > Simple & Easy Notification Service on the NAVER Cloud Platform console.
2. Navigate to SMS > Calling Number.
3. Select the project whose calling numbers you want to view, then click the [By number] tab.
   • Click a calling number row to view its detailed information.
   • You can click attached files to download them. However, the system marks expired attachments with a strikethrough and no longer allows you to download the files.
   • If the “processing status” is “additional documents required” or “canceled,” click the [Resubmit] button in the [By request] tab to revise the request and submit it again.

Renew calling number verification

To renew the verification of a registered calling number if it has expired or needs to be renewed:

1. Click > Services > Application Services > Simple & Easy Notification Service on the NAVER Cloud Platform console.
2. Navigate to SMS > Calling Number.
3. Select the project with the calling numbers you want to renew, and click the [By request] tab.
   • Click a row in the by-request list to view detailed information.
   • If your authentication requires renewal or has expired, click [Renew authentication] to open the sender number authentication renewal page. Attach the Certificate of Telecommunications Service Use issued within one month from the application date, and submit your request.

Delete calling numbers

To delete a registered calling number:

1. Click > Services > Application Services > Simple & Easy Notification Service on the NAVER Cloud Platform console.
2. Navigate to SMS > Calling Number.
3. Select the project containing the calling number you want to delete, then click either the [By calling number] or the [By request] tab.
4. Click the row or request that includes the calling number you want to delete, then click the [Delete] button.
5. When the delete confirmation pop-up appears, review the content and click the [Delete] button.
   • [By calling number] tab: The system deletes all calling numbers included in the selected request.
   • [By request] tab: The system deletes the selected calling number and removes it from the list.