Here is a concise summary of the text:
**Title:** 7 Most Disturbing Phone Calls
**Summary:**
A countdown of the 7 most chilling phone calls, including:
1. **Stalking Victim**: A boy harassed by an aggressive stalker who threatened to kill him.
2. **Bizarre Answering Machine Messages**: Unsettling sounds and potential animal noises left on a man's machine.
3. **"Help Me Paul"**: A mysterious, possibly prophetic, message amidst chaotic sounds.
4. **Mother's Disturbing Call**: A son hears strange, intelligent sounds while calling his mother, later found dead.
5. **Serial Killer's Voice Message**: A murderer in Mississippi left terrifying messages for locals.
6. **"Night Stalker" Harassment**: Serial killer Richard Ramírez taunted victims with phone calls before murdering them.
7. **"Murder Audio Collage"**: A killer allegedly created a haunting audio mix using voices of murdered women, calling hundreds with it; remains unsolved.
Here are the key facts extracted from the text, each with a number and in short sentences, excluding opinions:
**1.** Antonio Meucci is credited with inventing the telephone in 1854.
**2.** A boy was stalked and threatened with death via multiple phone calls around 10 years prior to the document's creation.
**3.** The boy recorded the calls and sent them to the police.
**4.** A woman received strange, threatening, and disturbing messages on her answering machine in 2011.
**5.** Experts believed the sounds in the messages were not recordings of wild animals but were produced by the caller.
**6.** A man received six disturbing messages on his answering machine, containing a voice saying "help me Paul" amidst chaotic noise.
**7.** The origin of the "help me Paul" message is unknown, but some believe it might be related to the "Mod Man" urban legend.
**8.** A person made a phone call to their mother and heard strange, non-random sounds, prompting them to re-dial and record the call.
**9.** The person had to contact acquaintances to check on their mother's well-being due to the unsettling sounds.
**10.** The mother was later found dead of natural causes.
**11.** In 2009, a serial killer in Amory, Mississippi, left voice messages for locals to instill terror.
**12.** Richard Ramírez, known as the "Night Stalker," would harass his victims with phone calls and messages before killing them in the 1980s.
**13.** In 2013, an individual made hundreds of phone calls playing a chilling audio collage of voices, believed to be women who were murdered.
**14.** The audio was supposedly created by the murderer using editing software to distort the victims' voices.
**15.** Despite the calls, the perpetrator was never traced or caught.