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How to Reduce Inbound Spam Calls

Spam calls can overwhelm your team, inflate call volume, and waste time. This guide walks through practical steps you can take to reduce inbound spam calls using built in tools and call routing strategies.

Last updated: May 26, 2026


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On this page

  • What is Inbound Spam Call Reduction in Bizura?
  • Key Benefits of Inbound Spam Call Reduction
  • Number Intelligence (Spam Detection, Caller ID & Validation)
  • Custom Dispositions for Voice Calls (Create “Spam call”)
  • Workflow — Contact DND (Quarantine Marked Spam)
  • Interactive Voice Response (IVR) — Light Front-Door Filter (Optional)
  • VIP/Safe List & Auto-Clear DND (Rollback Patterns)
  • Mobile Visibility (Spam Labels on App)
  • How To Set Up Inbound Spam Call Reduction (Step-by-Step)
  • Step 1 — Enable Number Intelligence
  • Step 2 — Create the “Spam call” disposition
  • Step 3 — Auto-enable Inbound DND (Calls) for spam-labeled contacts
  • Step 4 — Using IVR Workflow
  • Step 5 — Validate call flow & timeouts
  • Step 6 — Monitor & tune
  • Frequently Asked Questions
  • Related Articles

In this folder

  • Phone System Pricing & Billing Guide
  • What is LC (Lead Connector) Phone System?
  • Number Intelligence - Spam Detection, Caller ID & SMS Validation
  • Voicemail For Company And For Users
  • Getting Started with A2P 10DLC
  • Call Forwarding to Your Bizura Phone Number
  • How do I migrate my agency and sub-account over to LC Phone?
  • Why is your account suspended
  • Regulatory Bundle and Address Creation for Sub-Accounts
  • How to Disable LC Phone System for Subaccount/Location (LC to Twilio)
  • Phone System Messaging Analytics Overview
  • Know Your Customer (KYC) in the United Kingdom
  • How to Enable Call Transcriptions for Recorded Calls
  • How to Set Up Verified Caller ID (Use your number for Voice Calls)
  • How to Configure SMS Compliance Settings
  • Physical VoIP Deskphones (SIP)
  • LC Phone System - Error Code and Warning Dictionary
  • Why You Can't Delete a Twilio Subaccount from the Bizura?
  • KYC Verification on Persona — Best Practices
  • Custom Dispositions for Voice Calls
  • Avoiding Call Loops when routing calls to Internal Phone Numbers
  • How to Reduce Inbound Spam Calls
  • How to use Custom CSS to hide the Twilio error banner
  • Setting up webhooks to receive incoming calls, messages and status updates for calls (for Twilio users)
  • Understanding Default Phone Preferences for New Sub-Accounts
  • How to Create and Use Call Scripts in Web & App Dialers
  • The Phone Dialer Overview
  • Moving Phone Numbers: Migration Guide
  • 5% Stripe Markup Removed From All Phone System Charges
  • Call Events Not Working for Twilio

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