Carriers are flagging more calls as SPAM than ever — including yours. Learn how to prevent spam mislabeling and keep customers answering.
Published on May 21, 2026
The modern phone ecosystem is caught in a paradox: while voice remains the most personal and trusted channel for customers, it’s also one of the most exploited by bad actors.
The surge in spam and fraud calls has led carriers, regulators, and mobile device manufacturers to introduce call labeling systems that can flag suspicious calls as “Spam,” “Spam Likely,” or “Potential Spam.”
These systems are designed to protect consumers, but they’ve also introduced a new problem: legitimate business calls are being mislabeled as spam. Even reputable businesses can find their calls blocked or ignored, damaging brand trust and reducing answer rates.
As Kush Parikh, President of Hiya, puts it, “Unwanted calls erode consumer trust in their favorite communication tool – the phone – and therefore make it harder for legitimate, trusted businesses to reach them by phone."
Carriers use AI-driven analytics to assess calls across multiple dimensions — the caller’s identity, call history, behavioral patterns, and recipient feedback. Even well-meaning businesses can trigger negative labeling if they:
In many cases, a spam label isn’t a mistake; it’s a signal that something in the call experience needs attention.
While spam labeling can feel out of your control, there are proactive ways to protect your business reputation. Zoom works with partners like Hiya to help businesses improve answer rates and protect their number reputation — before, during, and after issues arise.
Our approach focuses on three areas:
SPAM labeling doesn’t have to be permanent. With the right approach, businesses can rebuild trust, improve answer rates, and maintain a strong call reputation.
Here are some best practices to help you protect your call reputation and maximize answer rates.
Every legitimate business should ensure its phone numbers are registered with leading registries, such as FreeCallerRegistry.com, a centralized, free platform that allows businesses to register their numbers directly with major U.S. wireless carriers to verify caller identity and prevent misclassification. Think of it as basic hygiene for your phone presence—like verifying your email domain.
By registering, you:
This simple, free step can significantly reduce false spam flags and help ensure your outbound calls reach the intended recipients.
Show respect in how and when you reach out to your customers:
Your call data can reveal early warning signs. High decline rates or short call durations can indicate issues with timing, tone, targeting, or call quality.
Focus on customers who want or expect to hear from you. Rely on first-party or verified leads instead of purchased lists, which often lead to spam complaints.
Zoom Phone and Zoom Contact Center offer Branded Calling, which lets you display your business name, logo, and call reason, increasing the likelihood that the receiver will answer your call.
Spam labeling isn’t the end of the conversation; it’s a chance to improve it. By refining your call practices, verifying your identity, and using a branded caller ID, you can protect your reputation and make every call count.
See how Zoom Phone's all-in-one communications platform—with branded calling, AI-powered insights, and 99.999% uptime—can help you reach customers with confidence.
