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    Welcome our Monster UI Apps Resource Pages!
    Below is a list of the applications developed by 2600Hz for KAZOO using the Monster UI Interface and documentation related to it. 
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  • Callflows - Blocklisting Numbers


    Within the Call Flows App, you will find the Blocklist set up.  The Blocklist is used to block calls fromparticular number.  Note this does not blocklist outgoing calls.  


    Create your Blocklist List of Numbers

     CallFlows_x512.png  Click into the Advanced Callflows App and select Blocklist 




    2.  Once in the Blocklist submenu, click  image.png  


    3. add a Name (for reference), and add the number. 

    Blacklist add numbers.png


    • You can also block all Anonymous calls by switching the “Block Anonymous” to On. 
    • It is important you add the exact number sequence you want to block, which in most cases includes a country code. (including the US +1).  To verify the number(s) match, you can view your call log in SmartPBX.  See the section below for details.

    Activate your list

    Once you've created the set of numbers, you will need to Activate that list for your specific account.   

    • Select the Return to Callflows Home button at the top right of your screen
    • Go to the Account Settings block 


    • Select the Blocklist tab
    • Drag your newly named Blocklist list from "Available" to "Selected and select the green UPDATE button at the bottom.

    blacklist - move list to selected.png


    To confirm the correct Number entry 

    If you want to make sure you are including the exact number as the blocklist routine will see it, you can view your call log and retrieve it there.  Follow these steps

    SmartPBX_x512.png   Access SmartPBX

    • Go to the Call Logs menu item

    Blacklist go to call log.png


    • Search for the call you've identified, and expand its listing.

      blacklist Call Log1.png
    • Select the gear to the right for a detail of the call routing and number.  You will see something like below:

    blacklist call log details.PNG


    • Use the "caller_id_number" as displayed here on your blocklist entry.


    Frequently Asked Questions

    How do I block / blocklist Anonymous calls?
    To blocklist Anonymous calls you will need to follow these steps:

    1. Create a blocklist and name it (e.g. Block Anonymous) 
    2. Toggle the switch saying "Block Anonymous" on

      blacklist set block anonymous on.png
    3. Return to Callflows / Account Settings and assign that blocklist file to the list
      blacklist anonymous calls2.png
    4. Select the green Update button to Save.

    This provides a first-level screening for calls where caller-IDs are tagged as anonymous.  If this is not filtering calls as expected, it's likely some added layers of configuration settings need to be reviewed:

    • The caller may have added a layer of deception about the call,  using techie-geeky strategies such as using a zero phone number  000000000 to a marking a SIP flag as "privacy=true".   If these kinds of calls persist, follow the steps above for "to confirm the correct number" from your SmartPBX log and manually blocklist the specific number.
    • If you are a Private Cloud or Global Infrastructure client and use your own carrier, your carrier may have a unique strategy for dealing with anonymous calls that KAZOO doesn't anticipate.  Check with support to help review your call logs.

    If your blocklist assignment is still letting calls come through, you may need to contact support so they can analyze your SIP call logs and Carrier settings at a more detailed level.


    Related Articles


      Advanced Callflow configurations and setup

    API Reference Docs

    REST API Reference for Kazoo Crossbar API


    image.pngimage.pngblacklist create and add number.png

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