How to Block Inbound Spam/Unwanted Callers
Blocking Spam or Unwanted Callers
Blocking a caller is sometimes a necessary step to preventing unwanted calls from an outside caller.
- If you have access to the Domain's Call Routing Users, you may prevent calls from reaching all of your Extensions. Advanced User and Office Manager Permission Levels have access to the Domain Users.
- If you only have access to your own Extension, you can still prevent calls from reaching your specific Extension.
In addition to blocking a "specific" caller, you also have options to handle all potential Spam Callers. Your options include:
- Ring as Normal (still includes the Spam Label to alert you)
- Send to Voicemail
- Screen Call
- Drop Call (This setting is available, but not recommended as a best practice. )
Continue reading for instructions for both blocking specific callers, and also managing identified Spam Callers.
Inbound Spam Options Video
Blocking a Specific Caller from Reaching Your Extension
If a caller simply needs to be blocked from reaching your specific Extension, follow these instructions. Blocking a specific Caller from reaching your Extension does not affect your domain's Main Routing.
Instructions
- Choose the Answering Rules Tab.

- Choose Allow/Block.

- In the Blocked Numbers column, type in the number you would like to block into the field.

- Click the Add plus icon.
- The blocked number will now be in the Blocked Numbers list.
- Repeat for any additional numbers.

- When you are finished adding phone numbers, choose Done.

Blocking a Specific Caller From Reaching All Extensions
If a caller needs to be blocked from reaching all of your Domain's Extensions, follow these instructions.
You must be in your Manager View to block callers from reaching your Domain. If you are in your Extension View and need to toggle to your Manager View, click Manage Organization to toggle to your Manager View.
Instructions
(If you’ve previously registered your number, you will not need to do it again. Registrations do not expire. You may check to see if your number has already been registered on the www.donotcall.gov site.)
Inbound Spam Call Options for Extensions or Call Routing
If you find that Spam or "robo" callers frequently contact your business, we do have proactive methods of preventing or screening their connection.
IMPORTANT NOTE: Depending on which Number you are setting the Spam for, additional Configuration by Clarity may be needed. Continue Reading for these Conditions.
Instructions
- Navigate to https://portal.clarityvoice.com and login as normal. Select Inventory and locate the Destination User(s) of your phone numbers.

- If your Destination User is an Extension, you may choose your settings of what to do with suspected Spam callers.
- If your Destination User is a Routing User or Auto Attendant, special Rules may apply. (see below)
- Navigate to the Users button and search for the Destination User. In this example, the Destination User is 300.

- If you receive a message that the Destination User is a System User, uncheck “Hide System Users”.

- Click the blue link of the Destination User.

- Select the Answering Rules tab.

- On the right side, select Allow/Block and a new window will pop up.

- Now, you may select what you would like to do with inbound calls marked as “Spam”.

- Ring as Normal: The call will have the Spam label and follow your current routing rules. This choice is the Default and can be used for any type of Routing.
- Send to Voicemail: The call is automatically forwarded to the voicemail box of that User.
- If your destination if a Routing or Auto Attendant User, you must contact us for additional configuration. We will enable your Voicemail box for the User and set your preferred notifications.
- Drop Call: The system will automatically disconnect the call. This choice is not recommended, as legitimate callers can sometimes be temporarily flagged by a carrier as possible spam.
- Screen Call: The caller is forced to record their name and press a digit before the call will connect. This recording will play prior to connection so that you may decide if you would like to answer.
- If your destination if a Routing or Auto Attendant User, you must contact us for additional configuration. We will determine the best way for you to receive the Screened Name so that you can accept or decline the caller.
- Once your selection has been made, close the pop-up window. All calls to that Destination User with a label “Spam” will now follow the rule set for incoming potential spam calls.
- Repeat this process with additional Destination Users for your telephone numbers.
Need to contact us for additional configuration? No need to call! You may submit a Ticket online for this change. We will make your configuration change for you!
Click here to submit a ticket.
Note: No matter which strategy you would like to employ, an additional best practice that we recommend is a one-time registration with the National Do Not Call Registry.
There is no cost to register on this list. Go here for registration: https://www.donotcall.gov/(If you’ve previously registered your number, you will not need to do it again. Registrations do not expire. You may check to see if your number has already been registered on the www.donotcall.gov site.)
Want to learn more about options to block Spam callers?
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