Way too much was left out of the original post to know what is occurring! Is the spam in the form or texts, phone calls, emails, or some other communication, like Messenger?
The other important things are, is the cellphone number used for business, which you recently answered, yes. The other important thing to know is Android or Apple. The other important thing to know is which cellular carrier?
If the cellphone was not used for business, and the cellphone is an iPhone, then the solution is pretty simple to significantly reduce the spam. Simply turn on “Silence Unknown Callers”. For the texts, you can silence the unknown texts too. If you have T-Mobile service, they offer additional screening.
Now, since the cellphone is used for business, then this limits your ability to screen out spam. One thing that could help is to not use the real cellphone number for the business. Instead, use Google Voice for the business.
Sign up for a free Google Voice line and install the Google Voice app on an iPhone. If the cellphone is an Android, it should be replaced with an iPhone. Next, port the business telephone number to Google Voice. Then replace the real cellphone number with a different real cellphone number.
Then lock down the real cellphone by turning on the filtering for the incoming telephone calls and texts. You will then have two telephone numbers with that cellphone. One is the real cellphone number, which is only used for people on your contact list. The other telephone number is the Google Voice line, that is only used for business calls.
Google Voice has some built in filtering. Each initial incoming telephone call needs to be “approved” by you. I think that the initial incoming texts also have to be approved by you.
If you don’t have T-Mobile service, and tge T-Mobile cellular coverage is good enough for you, then you could switch to T-Mobile for additional spam protection to the real cellphone number.
It’s a big mistake to use the real cellphone number for a business, since you are opening yourself up to getting a lot of spam, since you can’t lock down the real cellphone number.
Using a Google Voice number for the business and keeping your real cellphone number private, should drastically reduce the spam problems. Then in the future, keep your real cellphone number private. Give out your Google Voice number to “random” people. You can also start locking down apps on the iPhone to limit or stop the tracking activity.
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