The caller with the phone number +18449303507 is likely involved in a scam operation, using tactics such as creating a sense of urgency to deceive individuals into providing personal information or money. The caller claims to be a private courier or process server, but this is a ruse to get the target to call another number where they will be asked for payment to resolve a fake legal matter. Legitimate process servers do not call ahead to notify individuals of an impending serving of papers, and they do not ask for money to make a case go away. This scam relies on intimidation and fear to manipulate people into cooperating.
Legitimate couriers deliver documents in person, so be wary of independant court couriers contacting from private numbers - its probaly a scamm.
A supposed process server claims to have a sealed file and threatens legal action, attempting to create a sense of urgency, but this is merely a ruse to extort money, as they work in teams, one pretending to be a server and the other a lawyer, and process servers typically do not call ahead.
A woman claiming to be a private courier left a message on my answering machine, stating that she needed to deliver a document requiring my signature and threatening to report me if I did not comply, which appears to be a scam.