Preventing Outbound Calls from Being Marked as Spam Likely

Xima Software and our carriers, cannot prevent outbound calls from being blocked by receiving carriers. The general reasons calls get blocked are listed below.

The Top Triggers for Spam Blocking

High call volume from a single number

• Making too many outbound calls from the same phone number in a short period (for example, more than 75–100 calls per number per day) can look like an automated dialing system.
• Sudden, unpredictable spikes in call activity from a number can also trigger flags.

Customer reports and feedback

• Recipients manually reporting your number as spam or "Scam Risk" on their devices or through a call-blocking app (like Nomorobo or RoboKiller) is a major factor. If enough users report a number, its reputation score drops dramatically.

Short call durations and low answer rates

• If a high percentage of your calls are unanswered, have short durations (like just a few seconds, suggesting a quick hang-up by an auto-dialer when no human answers), or go straight to voicemail without a message, the carrier's analytics can interpret this as a robocall pattern.

How to Help Prevent a Spam Likely Listing

There are a couple of ways to work to prevent a Spam Likely listing.

The first is to register your phone numbers with carrier services so they know to hold your numbers to a different standard. Register at freecallerregistry.com.

The second is to register multiple outbound phone numbers so you're not using the same number over and over again. By registering multiple outbound numbers, agents can select a different number and make more calls if one gets temporarily blocked — or groups of agents can each use a different number.