Called twice last Friday, a half an hour apart. I didn't answer either time and never will. The funny thing was that the 203 number is what showed up on my caller ID and a completely different number with a 775 area code showed up on my carrier's web site. Is this what they call spoofing? They just called again and didn't leave a message. Time to block their butts.
Call is immediately terminated if you return the call.
It is a combination of an nonreturnable CallerID ICLID.
The cell provider has ANI, the internal caller ID carriers use for billing and routing calls, hence the difference between cell carrier's incoming call detail and the caller ID you see.
And a Predictive Dialer set for harassment.
Calls where the caller is silent are illegal. Transmitting a false or nonreturnable CallerID demonstrates false and evasive practice. Call a lawyer.