Rogo and Bayliss spent years researching the subject, combing the world over to find credible documentation. They discovered hundreds of well-documented accounts; many ghostly phone calls were witnessed by more than one person. Specifically, an individual answered the phone before turning it over to the person the spirit was calling for. In one case, two people on two separate phone held a "conference call" with a ghost. Most phone call recipients had no previous experience or interest with the paranormal. The phone call had been a one-time occurrence, brief, and the caller was typically a deceased relative or friend.
Rogo and Bayliss assert that nearly all of the cases fell into one of three categories:
1. Apparent Cases: The person receiving the call doesn't know the caller is dead and believes they are talking to a living person.
2. Intention Cases: The recipient receives an urgent phone call from a friend, relative or unknown individul (who explains they are placing the call for a friend or relative.) The witness later learns the friend never made the call nor authorized someone to call. The voice on the phone sounds exactly like that of a friend or relative.
3. Answer Cases: The recipient receives an urgent phone call from a friend, relative or uknown individual who claims to be placing the call for a friend or relative. The witness later learns the friend or relative never made the call nor authorized anyone to call. The voice on the phone sounds exactly like the friend or relative.
The researchers claim that most cases fall into the first scenario.