Secure Your Calls and Build Trust with Spam Protection
CloudTalk’s multi-layered spam protection safeguards your team and number reputation across the globe—so you connect with real customers.
- Automatically filter out known spam and robocalls based on risk signals or call behavior.
- Verify your numbers in real time to prevent outbound calls from being mislabeled.
- Blocks specific numbers instantly through manual input or automated triggers.
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What Is Spam Protection?
Spam protection is a set of tools and practices designed to keep your business communications clean, secure, and efficient. It goes beyond blocking obvious spam—it’s about making sure your calls reach the right people, your numbers stay trusted, and your team isn’t bogged down by fraud or unwanted noise.
CloudTalk’s multi-layered approach includes:
- Blacklist number management (manual or automatic)
- Global caller ID verification
- Business profiling for reputation trust
- Carrier-level integrations
- Call flow automation to reroute or filter threats
Together, these tools help ensure your calls are seen, answered, and respected—while keeping distractions and risks out of your way.
How Does Spam Protection Work?
Effective spam protection combines call filtering, reputation management, and smart automation. It helps businesses block unwanted activity, stay off spam lists, and ensure their calls reach the right people. Here’s how the key components typically work:
- Blacklist Management: Manually add numbers or automate blacklisting based on call outcomes, location, or risk factors.
- Inbound & Outbound Filtering: Choose which types of calls to block—whether it’s incoming spam, outgoing dials to bad numbers, or both.
- Verified Caller Registration: We proactively register your numbers and business info with anti-spam platforms to keep you off flagged lists.
- Dynamic Reputation Monitoring: We monitor number reputation trends to help resolve mislabeled numbers before they become a problem.
How to Set Up a Blacklist Number With CloudTalk?
- In your CloudTalk Dashboard, go to Account → Settings → Blacklist.
- Click Change, then hit +Add Phone Number in the top right corner.
- Select the country code and enter the number in basic format (e.g. 949111222).
- Choose whether to block it for inbound, outbound, or both types of calls.
- Click Save—and that number won’t bother your team again.
Features
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Call Tagging
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Single Sign-On (SSO)
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Frequently asked questions
Everything you need to know about the product and billing.
What is a blacklist number?
A blacklist number is a phone number blocked to prevent calls from reaching your system.
What’s the difference between blacklisting and spam protection?
Blacklisting blocks specific numbers. Spam protection includes caller verification, reputation management, dynamic filtering, and fraud prevention.
How do I make sure my outbound calls aren’t flagged as spam?
CloudTalk helps register your business with TrueCaller, Hiya, and other analytics providers. You can also segment traffic and distribute volume to avoid overuse of single numbers.
What is number reputation and how to protect it?
Number reputation refers to how carriers and call recipients perceive your number—spammy or trusted. CloudTalk builds your caller profile and helps resolve labeling issues to keep your calls clean.
Is it 67 or 69 to block your number?
Dial *67 before a number to block your caller ID for that call; *69 calls back the last number and does not block your number.
How do I check my blacklist number list?
Access your blacklist contacts through CloudTalk’s Dashboard or API to see all blocked numbers.
What happens if someone blacklists your number?
Calls from your number will be blocked or sent to voicemail, depending on their blocking settings.
What is the Phone Number Blacklist?
A list where you add numbers you don’t want to call or receive calls from. Calls between both sides are blocked.
How do I blacklist phone numbers?
Go to Account > Settings > Blacklist, click Change, add the number, select area code and call type, then save.
What happens when I blacklist a phone number?
The caller hears a message saying your number’s disconnected, and the call ends without voicemail.
Can I automate blacklisting based on call behavior?
Yes. You can trigger automatic blacklisting through workflows—e.g., after repeated call failures or spam reports.
How many phone numbers can I blacklist?
There’s no limit—you can blacklist as many phone numbers as you need in your CloudTalk account.
How to blacklist a phone number?
In CloudTalk, go to Account > Settings > Blacklist, click Add Number, enter the number, select call type, and save to block it.
Still have questions?
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