Crexendo Guidebook for Managers: How to Block SPAM and Robocalls

Learn how to effectively manage your team with the Crexendo Guidebook for Managers.

Written By Gideon O'Daniel (Administrator)

Updated at September 3rd, 2025

Introduction:

In the Call History section of the VIP Portal, administrators can block calls coming to the domain. In the VIP Portal for Users, a user can also block SPAM or Robo calls.

This guide will show how an administrator can block a number for the entire domain and how a user can block a SPAM or robocall number.

For a video demonstration, go to: https://www.youtube.com/watch?v=LKZBrCKiHVY&list=PLXADOltuavV9jC_HL7NiOiBoKA9VZIBxm&index=18&t=2s

This feature can be activated per user or domain wide.

 

How an Admin Can Block a Number for the Entire Domain:

  1. In the Call History section, select the “Blocked Numbers” button.
  1. Enter the number into the blank and press the “+” button to add it to your blocked numbers.
  1. If you have a list of numbers to add in all at once, select “Import” and download the template to add your numbers to. Once completed, browse to the template and “Upload” the file.

 

How a User Can Block a SPAM or robocall number:

If a user who has received a SPAM call or robocall, they can block it from being able to connect to their extension. Please keep in mind that by blocking a number as a user does NOT block it from the entire domain.

  1. From the Call History Section of the VIP Portal for Users, Select the “Blocked Numbers” button.
  1. Enter the number into the blank and press the “+” button.
  1. You can also block or unblock a number from the Call Details section by selecting the Block Call icon.