Blocked numbers
  • 22 Jan 2024
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Blocked numbers

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Article Summary

Who should read this article: Administrators

Block specific inbound phone numbers or prefixes from calling your contact center.


The blocked numbers feature enables you to prevent inbound calls from certain phone numbers or prefixes so that calls from specified phone numbers or prefixes do not reach your contact center.

Blocked numbers page

To add phone numbers and prefixes to your list of blocked numbers or to manage your blocked numbers, from the Voiso main menu, navigate to Inbound > Blocked numbers.

Inbound Call Blocking Page

Finding a blocked number

To search for a number or prefix in the blocklist, enter one or more characters, such as 44 or Anonymous, in the Search field. Only numbers starting with the search string are displayed in the blocklist table.

Blocklist table

The blocklist table contains a list of all the numbers and prefixes that are blocked from calling your contact center. The table lists the blocked number, the reason it was blocked, the date it was blocked, and the email address or username of the person who blocked the number.

Adding a blocked number

To add a number or prefix to the Blocked numbers list (blocklist), follow these steps:

  1. In the Add number or prefix panel, click Add number.
  2. Enter a phone number or prefix in the Number or prefix field.
  3. Enter a reason why the number is blocked in the Reason field.
  4. Click Save.

Inbound Blocked Number Add Blocked Number Panel

Deleting a blocked number

To remove a blocked number or prefix from the blocklist table, click the trash can icon (Delete button) on the right side of the row containing the number.

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