phone calls from beyond?

In September 2008, a train accident killed Charles E. Peck.  His body wasn't found until 12 hours after the accident when it was determined that he died upon impact.  His cell phone however continued dialing family members for 11 hours.  When the calls were answered, there was only static and attempts to return the calls only resulted in getting to his voice mail.  An hour before his body was found, the calls stopped.  eerie calls