Casio Ravine Benutzerhandbuch

Safety

accurately as possible. Never terminate an emergency call until you 

have received clearance to do so. 

The Federal Communications Commission (FCC) requires wireless 

carriers to transmit specific latitude and longitude location (Automatic 

Location Identification = ALI) information as well as “911” calls to 

Public Safety Answering Points (PSAPs) to identify the location of 

the caller in case of emergency. Generally, the rules require that 

carriers identify an E911 caller’s location within 50 meters of the actual 

location for 67 percent of calls and within 150 meters of the actual 

location for 95 percent of calls.

The Ravine™ is an ALI-capable phone equipped with a GPS (Global 

Positioning System) receiver supporting a satellite-based GPS ALI-

capable network to comply with the FCC’s ALI requirements. 

The network compliance with the above FCC requirements is 

dependent on: (a) the use of digital technology by the wireless 

network; (b) GPS satellite signals being able to reach the handset 

(such transmissions do not always work indoors, for example); and (c) 

handset signals reaching wireless “base stations” (atmospheric and 

environmental conditions may cause variations in handset receiving 

signal strength). 

Also the transmission of the ALI information is subject, in part, to 

system constraints within the wireless network to which the E911 

signal is transmitted and over which PCD has no control. 

Finally, customers are advised that the Ravine’s ALI capability is to be 

used for E911 purposes only.

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