An obscene or harassing phone call occurs when a caller makes any comment, request, suggestion or proposal that is obscene, lewd, lascivious, filthy, vulgar or indecent, according to the University of Florida Police Department. File a complaint with your local police department and your phone provider immediately after you receive obscene calls on your cell phone.
Document each obscene call you receive. The police department of Genoa, Illinois, recommends documenting the gender of the caller, a description of the caller's voice, the exact time and date of the call, the exact words the caller used, how old the caller sounded, the caller’s accent, any background noise and whether or a phone number or name displayed on your cell phone.
Visit your local police department in person or request an officer visit your home to file a report. Provide your documentation of the obscene calls. According to Privacy Rights Clearinghouse, your documentation of the incident serves as evidence that will help the police and the cell phone carrier investigate the harassment.
File a complaint through your cell phone provider’s customer service department. Tell your provider you have already filed a report with the police about the incident. Provide a copy of your documentation if the provider requests it. According to the Genoa Police Department, your cell phone provider can assist in the investigation by setting up a "trap" on your phone line to discover the telephone number from which the harassing calls originate.
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