company logo

Help center

Login to Ivorey™
All collectionsPhone ServicesReduce Inbound Spam Calls

Reduce Inbound Spam Calls

Learn how to identify and reduce spam calls reaching your Ivorey™ phone numbers, and access our step-by-step instructions, FAQs, and everything you need to know!

Before You Dive In

Spam calls can inflate your call volume, waste time, and if you're using Voice AI, result in unnecessary usage costs. Spam callers often spoof local numbers, making individual number blocking unreliable, which makes it impossible to block all spam completely. However, there are a few layers of protection you can put in place to significantly reduce their impact.

Your account already blocks calls from hidden or private caller IDs automatically, so the steps below focus on what else you can do on top of that.

This guide is perfect if you want to:

  • Identify likely spam callers before answering

  • Automatically block repeat spam numbers from calling again

  • Add a simple screening step to filter out robocalls on high-traffic numbers

  • Protect important contacts from being accidentally blocked

warning icon
Following these steps will significantly reduce how often spam reaches your team and how much time it consumes, but it won't eliminate spam calls entirely, as spam callers frequently change numbers.

How to Reduce Spam Calls

The most effective approach is to layer these methods together. Each one adds a different level of protection - implement them in order based on how much spam you're experiencing.

Step 1: Enable Number Intelligence

Number Intelligence uses phone number reputation data to detect likely spam and nuisance callers before you, your team, or your Voice AI Agent answers. This helps your team quickly recognise spam patterns and reduce time wasted on repeat callers.

warning icon
Spam Detection availability varies by country, and is most reliable for US phone numbers. Number Intelligence comes with additional usage-based fees. Please refer to our Billing and Inclusions guide for details.
Click here for the written steps
  1. From the main Ivorey™ menu, go to Settings > Phone Numbers > Additional Settings tab

  2. Click to the [Number Intelligence] tab > and tick the box next to Gather Intelligence on Unknown Phone Numbers to enable

  3. Once enabled, calls flagged as likely spam will show a Spam Likely indicator in your call logs and in the LeadConnector app


Step 2: Automatically Block Repeat Spam Callers

If spam is still getting through after enabling Number Intelligence, the next step is to make spam handling consistent and automated. This involves creating a custom call disposition your team can apply when they receive a spam call, then using a workflow to automatically enable inbound DND on that number so it can never ring through again.

Click here for the written steps
  1. From the main Ivorey™ menu, go to Settings > Phone Number > Voice > Custom Dispositions

  2. Click [Add Disposition] > type a clear, consistent name (e.g. Spam Call) > and save

  3. Your team can now select [Spam Call] from the call end screen (on desktop and mobile) whenever they receive a spam call

  4. Go to Workflows > click [+ Create Workflow] > and select [Start from scratch]

  5. At the top, give your workflow a relevant Name > click to add a Trigger > and search for and select the [Call Details] trigger:

    1. Click [+ Add filters] > select [Call direction] from the first drop-down > and select [Incoming] from the second drop-down

    2. Click [+ Add filters] > select [Custom disposition] from the first drop-down > and select the spam call disposition you created, from the second drop-down

    3. Click [Save Trigger]

  6. Click the [+] button to add an action > search for and select the [Enable/Disable DND] action:

    1. Set the DND Direction to [Inbound] > and set DND to [Enable DND for all channels]

    2. Click [Save Action]

  7. Toggle your workflow to [Publish], in the top right corner > and click the [Save] button

  8. Test your workflow by calling your own connected Ivorey™ number > click the Spam Call disposition option > check your contact in Ivorey™ to see if DND was enabled > and check your workflow Execution Logs tab to see if there were any errors (remember to disable DND for your contact again after testing)

  9. From now on, whenever a team member marks a call as spam, that number will automatically be blocked from calling through again

  10. (optional) If you want to make sure certain contacts (e.g. key clients or business partners) can never accidentally be blocked:

    1. Add a tag to their contact record (e.g. VIP)

    2. Return to your workflow > and click the [+] before the DND action, to add an action > and search for and select the [If/Else] action:

      1. Under Branches, click the first drop-down > and search for and select [Tags]

      2. From the Operator drop-down, select [Does not include]

      3. From the Tags drop-down, select the tag you added to your VIP contacts

      4. Click [Save Action]

    3. Click the [Save] button, in the top right corner of your workflow

    4. Now any contact that enters the workflow will be checked for the VIP contact tag > if they don’t have the tag, DND will be enabled > if they do have the tag nothing will happen


Step 3: Add IVR Screening for High-Traffic Numbers

IVR (Interactive Voice Response) is one of the most effective spam filters for publicly listed numbers. Most robocalls can’t navigate phone menus, and even human spam callers tend to drop off when they have to press keys and wait. This step is best suited to numbers published on ads, directories, or landing pages where spam volume is highest.

info icon
IVR adds a small amount of friction for all callers, so it's not recommended for high-urgency businesses where every second of response time matters. Each phone number can only be assigned to one IVR workflow at a time - if a number doesn't appear in your workflow filter options, it may already be in use by another workflow.
Click here for the written steps
  1. From the main Ivorey™ menu, go to Workflows > click [+ Create Workflow] > and select [Start from scratch]

  2. At the top, give your workflow a relevant Name > click to add a Trigger > and search for and select the [Start IVR] trigger:

    1. Under the In phone number filter, select the phone number you want to screen

    2. Click [Save Trigger]

  3. Click the [+] button to add an action > search for and select the [Gather Input on Call] action:

    1. Ensure Say a Message is selected > and input a short prompt (e.g. Thanks for calling [Business Name]. To connect, press 1.)

    2. Set your preferred Language > select a Message Voice (Man or Woman) > and keep Number of Loops at 1

    3. Click [Advanced Settings]:

      1. Set Stop Gathering After (Seconds) - how long to wait for a keypress (5-30 seconds)

      2. (optional) Enable Stop Gathering on Key Press so the input submits the moment a key is pressed, rather than waiting for the full timeout > and input the number or key specified in your prompt above

      3. Set the Stop Gathering After (Digits) number to match your prompt above (e.g. if you told callers to press 1, you can stop gathering after 1 digit, but if you told callers to press 12 you would need to gather 2 digits)

    4. Toggle on Match Conditions to route callers based on what they press:

      1. Enter a relevant Branch name (e.g. Connect) > and next to On key press enter the value to match your prompt (e.g. 1)

      2. (optional) Add additional branches, in order to create numbered options > and make sure to adjust your prompt accordingly (e.g. press 1 to connect to support, press 2 to connect to billing)

        Note: We recommend keeping your IVR simple with as few button options as possible. Long menus create more friction for real customers than they do for spam callers.

    5. Click [Save Action]

  4. Your workflow will now have two branches > callers who press the correct key fall into the first branch (e.g. Connect) > callers who don't press a valid key automatically fall into the None branch

  5. In the first branch (e.g. Connect), click the [+] button to add an action > search for and select the [Connect to Call (IVR)] action:

    1. Select the team member they should be routed to - or select [Assigned User] to automatically route to the team member assigned to the contact profile

    2. Click [+ Add Custom Number] to route to a specific phone number instead > and enter the phone number

    3. (optional) Add a Whisper Message, to play a quick note for your team member at the start of the call, so they know they call has been routed

    4. (optional) In Advanced Settings, you can enable Detect Voicemail, Record Call, Timeout and Time Limit

    5. Click [Save Action]

  6. In the None branch, click the [+] button to add an action > search for and select the [Say or Play Message] IVR action:

    1. Type in a short message to explain that they did not select a valid key (e.g. That number was invalid, please call back to try again) > and click [Save Action]

    2. Click the [+] button to add another action > search for and select the [End Call (IVR)] action to automatically hang up - or select the [Record Voicemail] action to send callers to voicemail instead

  7. Toggle the workflow to [Publish] in the top right corner > and click [Save]

  8. Test your workflow with a few calls to confirm the press 1 path connects correctly, and an incorrect key ends cleanly


Step 4: Monitor and Adjust

After setting up these spam protection methods, check in regularly to make sure everything is working as intended and adjust as needed:

  • Weekly: review your call logs, how often the Spam Call disposition is being used, IVR no-input rates, and which contacts have Inbound Voice DND enabled

  • Adjust IVR prompts and timeouts if real callers are dropping off before connecting

  • Review contacts with Inbound DND periodically to catch any legitimate numbers that were accidentally blocked


Frequently Asked Questions

Will Number Intelligence automatically block spam calls?

No. Number Intelligence provides a "Spam Likely" signal on suspicious numbers in your call logs and app, but it doesn't block calls automatically. Blocking behaviour comes from the DND workflow and optional IVR screening in the steps above.

Why can't I just block individual spam numbers?

You absolutely can and should block individual spam numbers, as they are identified. However, spam callers frequently change numbers, so blocking individual numbers is not reliable as a standalone solution.

What if a team member marks a real customer as spam by mistake?

If a contact is accidentally marked as spam, and sent through your DND workflow, you can disable DND on that contact's record manually. Please refer to our DND guide for the steps. Adding a VIP tag will also protect that contact from being blocked again in the future, if you’ve set that up in your DND workflow.

Alternatively, you can automatically disable Inbound DND after a certain period (e.g. 30 days). To this, return to the DND workflow, add a Wait action at the end (set to your preference of time), and add another Enable/Disable DND action to disable Inbound DND again.

Does enabling Inbound DND affect my ability to call that contact?

No. Enabling Inbound DND only blocks that number from ringing through to you. Your ability to make outbound calls to that contact is not affected, unless Outbound DND is enabled.


Need Help?

Hit the support chat widget inside Ivorey™ - we can:

  • Walk you through any of the steps

  • Troubleshoot anything that’s not working

We’re here and ready to help via the chat widget in the bottom right of your Ivorey™ account. Or if you are looking for done-for-you support, you can browse our current services here 🤍

Did this answer your question?
😞
😐
😁