Lauded for avoiding the typical vague, high-level survey approach found in many texts, earlier editions of this bestselling book removed the mystery by explaining the internal structure of an ...

Dramatic drop in use and issues maintaining call boxes cited for system's end. Call box system cost $350,000 to $400,000 a year. Funds will be used for other programs like free roadside assistance and ...

We now know what caused the 911 outage across Pennsylvania earlier this month. According to Pennsylvania's Emergency Management Agency, the intermittent outages were caused by a defect in an operating ...