Md. Code, Criminal Law § 3–804

(a) A person may not use telephone facilities or equipment to make:

(1) an anonymous call that is reasonably expected to annoy, abuse, torment, harass, or embarrass another;

(2) repeated calls with the intent to annoy, abuse, torment, harass, or embarrass another; or

(3) a comment, request, suggestion, or proposal that is obscene, lewd, lascivious, filthy, or indecent.

(b) A person who violates this section is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 3 years or a fine not exceeding $500 or both.