Any person who uses obscene, vulgar, profane, lewd, lascivious, or indecent language, or makes any suggestion or proposal of an obscene nature, or threatens any illegal or immoral act with the intent to coerce, intimidate, or harass any person, over any telephone or citizens band radio, in this Commonwealth, is guilty of a Class 1 misdemeanor. “Over any telephone” includes, for purposes of this section, any electronically transmitted communication producing a visual or electronic message that is received or transmitted by cellular telephone or other wireless telecommunications device.